Making GNOME Look Like OS X
The GNOME desktop environment offers a wide variety of choices when it comes to cosmetics; you can make it look like practically anything. In its default condition, GNOME is highly usable, but perhaps a little bland. If you've always admired the Apple OS X desktop theme and layout but aren't ready to drop a load of cash on an Apple machine (or if you want to stick with free software), this article will show you how to make GNOME look and feel more like OS X, with some limitations.
The first step toward OS X-ness is to change the icon, window border, and application control themes. There are several individual theme packages that meet these needs, and a few that try to do it all in one.