Howtoforge published a tutorial about enabling Compiz on a Fedora 16 GNOME Classic Desktop

This tutorial shows how you can enable Compiz on a Fedora 16 GNOME classic desktop (the system must have a 3D-capable graphics card - I'm using an NVIDIA GeForce 8100 here). With Compiz you can use beautiful 3D effects like wobbly windows or a desktop cube on your desktop. I will use the free nouveau driver in this tutorial instead of the proprietary NVIDIA driver. nouveau is an accelerated Open Source driver for NVIDIA cards that comes with experimental 3D support on Fedora 16 - on my test system 3D support was working without any problems.

  Enabling Compiz On A Fedora 16 GNOME Classic Desktop (NVIDIA GeForce 8100)