I installed Compiz Fusion on Lucid Lynx. It doesn't open on startup though, so I have to right click on the Compiz Fusion Icon then click Reload Window Manager. But I thought it would be nifty if I didn't have to do this. So I added this command to Startup Applications:

compiz --replace
And it works. However, the CPU goes to like %50-60 on startup and doesn't stop. I removed the startup command and restarted, and the CPU averages %5-10. Does anyone know the reason for this?