Howtoforge shows you how to enable Compiz Fusion on Ubuntu 11.10

This tutorial shows how you can enable Compiz Fusion on an Ubuntu Linux 11.10 (Oneiric Ocelot) Unity desktop (the system must have a 3D-capable graphics card - I'm using an NVIDIA GeForce 8200 here). With Compiz Fusion you can use beautiful 3D effects like wobbly windows or a desktop cube on your desktop.

  Enabling Compiz Fusion On Ubuntu 11.10 (Oneiric Ocelot)