diff --git a/examples/pylonstest/nose.ini b/examples/pylonstest/nose.ini
new file mode 100644
index 00000000..599f3e27
--- /dev/null
+++ b/examples/pylonstest/nose.ini
@@ -0,0 +1,65 @@
+#
+# pylonstest - Pylons testing environment configuration
+#
+# The %(here)s variable will be replaced with the parent directory of this file
+#
+[DEFAULT]
+debug = false
+# Uncomment and replace with the address which should receive any error reports
+#email_to = you@yourdomain.com
+smtp_server = localhost
+error_email_from = paste@localhost
+
+[server:main]
+use = egg:gunicorn#main
+host = 192.168.0.1
+port = 80
+workers = 2
+proc_name = brim
+ignore_this = True
+
+[app:main]
+use = egg:pylonstest
+full_stack = true
+static_files = true
+
+cache_dir = %(here)s/data
+beaker.session.key = pylonstest
+beaker.session.secret = somesecret
+
+# Add additional test specific configuration options as necessary.
+# Logging configuration
+[loggers]
+keys = root, routes, pylonstest
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = INFO
+handlers = console
+
+[logger_routes]
+level = INFO
+handlers =
+qualname = routes.middleware
+# "level = DEBUG" logs the route matched and routing variables.
+
+[logger_pylonstest]
+level = DEBUG
+handlers =
+qualname = pylonstest
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(asctime)s,%(msecs)03d %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
+
diff --git a/gunicorn/app/base.py b/gunicorn/app/base.py
index 34070baf..201b4d0f 100644
--- a/gunicorn/app/base.py
+++ b/gunicorn/app/base.py
@@ -33,7 +33,13 @@ class Application(object):
         
         # Load up the config file if its found.
         if opts.config and os.path.exists(opts.config):
-            cfg = globals().copy()
+            cfg = {
+                "__builtins__": __builtins__,
+                "__name__": "__config__",
+                "__file__": opts.config,
+                "__doc__": None,
+                "__package__": None
+            }
             try:
                 execfile(opts.config, cfg, cfg)
             except Exception, e:
@@ -42,6 +48,9 @@ class Application(object):
                 sys.exit(1)
         
             for k, v in list(cfg.items()):
+                # Ignore unknown names
+                if k not in self.cfg.settings:
+                    continue
                 self.cfg.set(k.lower(), v)
             
         # Lastly, update the configuration with any command line
diff --git a/gunicorn/app/pasterapp.py b/gunicorn/app/pasterapp.py
index 8fce6845..066d16a0 100644
--- a/gunicorn/app/pasterapp.py
+++ b/gunicorn/app/pasterapp.py
@@ -47,7 +47,12 @@ class PasterApplication(Application):
         cfg['workers'] = int(lc.get('workers', 1))
         cfg['umask'] = int(lc.get('umask', 0))
         cfg['default_proc_name'] = gc.get('__file__')
-        cfg.update(dict((k,v) for (k,v) in lc.items() if k not in cfg))
+        
+        for k, v in lc.items():
+            if k not in self.cfg.settings:
+                continue
+            cfg[k] = v
+
         return cfg
         
     def load(self):
diff --git a/gunicorn/config.py b/gunicorn/config.py
index 8702bef1..2e8dc961 100644
--- a/gunicorn/config.py
+++ b/gunicorn/config.py
@@ -5,7 +5,7 @@
 
 from __future__ import with_statement
 
-import ConfigParser
+import copy
 import grp
 import inspect
 import optparse
@@ -23,7 +23,7 @@ KNOWN_SETTINGS = []
 class Config(object):
         
     def __init__(self, usage=None):
-        self.settings = dict((s.name, s) for s in KNOWN_SETTINGS)
+        self.settings = dict((s.name, s.copy()) for s in KNOWN_SETTINGS)
         self.usage = usage
         
     def __getattr__(self, name):
@@ -78,7 +78,6 @@ class Config(object):
     @property
     def uid(self):
         user = self.settings['user'].get()
-        
         if not user:
             return os.geteuid()
         elif user.isdigit() or isinstance(user, int):
@@ -89,7 +88,6 @@ class Config(object):
     @property
     def gid(self):
         group = self.settings['group'].get()
-
         if not group:
             return os.getegid()
         elif group.isdigit() or isinstance(user, int):
@@ -105,18 +103,6 @@ class Config(object):
         else:
             return self.settings['default_proc_name']
 
-    @property
-    def pre_fork(self):
-        return self.settings['pre_fork'].get()
-    
-    @property
-    def post_fork(self):
-        return self.settings['post_fork'].get()
-    
-    @property
-    def pre_exec(self):
-        return self.settings['pre_exec'].get()
-
 class Setting(object):
     def __init__(self, name):
         self.name = name
@@ -162,6 +148,9 @@ class Setting(object):
             kwargs.pop("type")
         parser.add_option(*args, **kwargs)
     
+    def copy(self):
+        return copy.copy(self)
+    
     def get(self):
         return self.value
     
@@ -172,6 +161,8 @@ class Setting(object):
 def validate_bool(val):
     if isinstance(val, types.BooleanType):
         return val
+    if not isinstance(val, basestring):
+        raise TypeError("Invalid type for casting: %s" % val)
     if val.lower().strip() == "true":
         return True
     elif val.lower().strip() == "false":
@@ -182,11 +173,17 @@ def validate_bool(val):
 def validate_pos_int(val):
     if not isinstance(val, (types.IntType, types.LongType)):
         val = int(val, 0)
+    else:
+        # Booleans are ints!
+        val = int(val)
+    print "Setting: %s" % val
     if val < 0:
         raise ValueError("Value must be positive: %s" % val)
     return val
 
 def validate_string(val):
+    if not isinstance(val, basestring):
+        raise TypeError("Not a string: %s" % val)
     return val.strip()
 
 def validate_callable(arity):
@@ -203,7 +200,7 @@ with Setting("config") as s:
     s.cli = ["-c", "--config"]
     s.meta = "FILE"
     s.validator = validate_string
-    s.default = "gunicorn.conf.py"
+    s.default = None
     s.fmt_desc("""\
         The path to a Gunicorn config file.
         
diff --git a/gunicorn/http/tee.py b/gunicorn/http/tee.py
index 385051d1..aaf90cea 100644
--- a/gunicorn/http/tee.py
+++ b/gunicorn/http/tee.py
@@ -39,7 +39,7 @@ class TeeInput(object):
         elif self._len and self._len < util.MAX_BODY:
             self.tmp = StringIO()
         else:
-            self.tmp = tempfile.TemporaryFile(dir=self.cfg['tmp_upload_dir'])
+            self.tmp = tempfile.TemporaryFile(dir=self.cfg.tmp_upload_dir)
         
         if len(buf.getvalue()) > 0:
             chunk, self.buf = parser.filter_body(buf)
diff --git a/tests/001-test-parser.py b/tests/001-test-parser.py
index ca9e3217..e324a07c 100644
--- a/tests/001-test-parser.py
+++ b/tests/001-test-parser.py
@@ -167,7 +167,7 @@ def test_010(buf, p):
     body = ""
     while not p.body_eof():
         chunk, buf2 = p.filter_body(buf2)
-        print chunk
+        #print chunk
         if chunk:
             body += chunk
     t.eq(body, "all your base are belong to us")
diff --git a/tests/003-test-config.py b/tests/003-test-config.py
new file mode 100644
index 00000000..4d888e10
--- /dev/null
+++ b/tests/003-test-config.py
@@ -0,0 +1,186 @@
+
+from nose.plugins.skip import SkipTest
+
+import t
+
+import functools
+import os
+import sys
+
+from gunicorn import config
+from gunicorn.app.base import Application
+from gunicorn.workers.sync import SyncWorker
+
+dirname = os.path.dirname(__file__)
+def cfg_file():
+    return os.path.join(dirname, "config", "test_cfg.py")
+def paster_ini():
+    return os.path.join(dirname, "..", "examples", "pylonstest", "nose.ini")
+
+def PasterApp():
+    try:
+        from paste.deploy import loadapp, loadwsgi
+    except ImportError:
+        raise SkipTest()
+    from gunicorn.app.pasterapp import PasterApplication
+    return PasterApplication("no_usage")
+
+class AltArgs(object):
+    def __init__(self, args=None):
+        self.args = args or []
+        self.orig = sys.argv
+
+    def __enter__(self):
+        sys.argv = self.args
+    
+    def __exit__(self, exc_type, exc_inst, traceback):
+        sys.argv = self.orig
+
+class NoConfigApp(Application):
+    def __init__(self):
+        super(NoConfigApp, self).__init__("no_usage")
+    
+    def init(self, parser, opts, args):
+        pass
+    
+    def load(self):
+        pass
+
+
+def test_defaults():
+    c = config.Config()
+    for s in config.KNOWN_SETTINGS:
+        t.eq(s.default, c.settings[s.name].get())
+
+def test_property_access():
+    c = config.Config()
+    for s in config.KNOWN_SETTINGS:
+        getattr(c, s.name)
+    
+    # Class was loaded
+    t.eq(c.worker_class, SyncWorker)
+    
+    # Debug affects workers
+    t.eq(c.workers, 1)
+    c.set("workers", 3)
+    t.eq(c.workers, 3)
+    c.set("debug", True)
+    t.eq(c.workers, 1)
+    
+    # Address is parsed
+    t.eq(c.address, ("127.0.0.1", 8000))
+    
+    # User and group defaults
+    t.eq(os.geteuid(), c.uid)
+    t.eq(os.getegid(), c.gid)
+    
+    # Proc name
+    t.eq("gunicorn", c.proc_name)
+    
+    # Not a config property
+    t.raises(AttributeError, getattr, c, "foo")
+    # Force to be not an error
+    class Baz(object):
+        def get(self):
+            return 3.14
+    c.settings["foo"] = Baz()
+    t.eq(c.foo, 3.14)
+
+    # Attempt to set a cfg not via c.set
+    t.raises(AttributeError, setattr, c, "proc_name", "baz")
+    
+    # No setting for name
+    t.raises(AttributeError, c.set, "baz", "bar")
+    
+def test_bool_validation():
+    c = config.Config()
+    t.eq(c.debug, False)
+    c.set("debug", True)
+    t.eq(c.debug, True)
+    c.set("debug", "true")
+    t.eq(c.debug, True)
+    c.set("debug", "false")
+    t.eq(c.debug, False)
+    t.raises(ValueError, c.set, "debug", "zilch")
+    t.raises(TypeError, c.set, "debug", 4)
+
+def test_pos_int_validation():
+    c = config.Config()
+    t.eq(c.workers, 1)
+    c.set("workers", 4)
+    t.eq(c.workers, 4)
+    c.set("workers", "5")
+    t.eq(c.workers, 5)
+    c.set("workers", "0xFF")
+    t.eq(c.workers, 255)
+    c.set("workers", True)
+    t.eq(c.workers, 1) # Yes. That's right...
+    t.raises(ValueError, c.set, "workers", -21)
+    t.raises(TypeError, c.set, "workers", c)
+
+def test_str_validation():
+    c = config.Config()
+    t.eq(c.proc_name, "gunicorn")
+    c.set("proc_name", " foo ")
+    t.eq(c.proc_name, "foo")
+    t.raises(TypeError, c.set, "proc_name", 2)
+
+def test_callable_validation():
+    c = config.Config()
+    def func(a, b):
+        pass
+    c.set("pre_fork", func)
+    t.eq(c.pre_fork, func)
+    t.raises(TypeError, c.set, "pre_fork", 1)
+    t.raises(TypeError, c.set, "pre_fork", lambda x: True)
+
+def test_cmd_line():
+    with AltArgs(["prog_name", "-b", "blargh"]):
+        app = NoConfigApp()
+        t.eq(app.cfg.bind, "blargh")
+    with AltArgs(["prog_name", "-w", "3"]):
+        app = NoConfigApp()
+        t.eq(app.cfg.workers, 3)
+    with AltArgs(["prog_name", "-d"]):
+        app = NoConfigApp()
+        t.eq(app.cfg.debug, True)
+
+def test_app_config():
+    with AltArgs():
+        app = NoConfigApp()
+    for s in config.KNOWN_SETTINGS:
+        t.eq(s.default, app.cfg.settings[s.name].get())
+
+def test_load_config():
+    with AltArgs(["prog_name", "-c", cfg_file()]):
+        app = NoConfigApp()
+    t.eq(app.cfg.bind, "unix:/tmp/bar/baz")
+    t.eq(app.cfg.workers, 3)
+    t.eq(app.cfg.proc_name, "fooey")
+    
+def test_cli_overrides_config():
+    with AltArgs(["prog_name", "-c", cfg_file(), "-b", "blarney"]):
+        app = NoConfigApp()
+        t.eq(app.cfg.bind, "blarney")
+        t.eq(app.cfg.proc_name, "fooey")
+
+def test_paster_config():
+    with AltArgs(["prog_name", paster_ini()]):
+        app = PasterApp()
+        t.eq(app.cfg.bind, "192.168.0.1:80")
+        t.eq(app.cfg.proc_name, "brim")
+        t.eq("ignore_me" in app.cfg.settings, False)
+
+def test_cfg_over_paster():
+    with AltArgs(["prog_name", "-c", cfg_file(), paster_ini()]):
+        app = PasterApp()
+        t.eq(app.cfg.bind, "unix:/tmp/bar/baz")
+        t.eq(app.cfg.proc_name, "fooey")
+        t.eq(app.cfg.default_proc_name, "blurgh")
+
+def test_cli_cfg_paster():
+    with AltArgs(["prog_name", "-c", cfg_file(), "-b", "whee", paster_ini()]):
+        app = PasterApp()
+        t.eq(app.cfg.bind, "whee")
+        t.eq(app.cfg.proc_name, "fooey")
+        t.eq(app.cfg.default_proc_name, "blurgh")
diff --git a/tests/config/test_cfg.py b/tests/config/test_cfg.py
new file mode 100644
index 00000000..70b8074b
--- /dev/null
+++ b/tests/config/test_cfg.py
@@ -0,0 +1,4 @@
+bind = "unix:/tmp/bar/baz"
+workers = 3
+proc_name = "fooey"
+default_proc_name = "blurgh"
\ No newline at end of file
diff --git a/tests/t.py b/tests/t.py
index 1aacd0c6..639e4698 100644
--- a/tests/t.py
+++ b/tests/t.py
@@ -75,7 +75,7 @@ class http_request(object):
     def __call__(self, func):
         def run():
             fsock = FakeSocket(data_source(self.fname))
-            req = Request(fsock, ('127.0.0.1', 6000), ('127.0.0.1', 8000), Config({}))
+            req = Request(Config(), fsock, ('127.0.0.1', 6000), ('127.0.0.1', 8000))
             func(req)
         run.func_name = func.func_name
         return run