For any of you who haven't already seen this:
YouTube - Beryl YouTube - My Ubuntu Beryl Matrix 3D Desktop 
This would be Beryl. If anyone is running...pretty much any distro of Linux, and would like help getting it setup just say so. I got it up and running this morning after much trial and error. Running correctly, this dwarfs Vista's Aero. It is just simply amazing to look @. I started playing with it...and before I knew it, I looked @ the clock and 10 hrs went by (HOLY CRAP). If you're running Linux...this is a must have.
I can help people running ATI more so than Nvidia...seeing as how I'm running an ATI card. Nvidia is supposedly MUCH easier to setup though.
For those of you who are running ATI, I HIGHLY recommend this site:
3D Desktop (Beryl and Xgl) on Ubuntu Edgy Eft with ATI card ~ Where I write my things and thoughts
-it is primarily aimed @ Ubuntu, but the instructions are somewhat universal if you know what to launch in-place of the apps used that are Ubuntu specific.
As I said...I had much trial and error with this....if anyone needs help, just let me know...I probably had the same problem :P