Compiz desktop looks beautiful!
My friend recently lead me to the most awesome desktop environment available, called Compiz (stupid sounding name). The videos below show the basics of it, and I love it. This isn't available in any VM, so you'll have to be running Linux dual boot or full blown. I know for sure it works on Fedora and Ubuntu, but you'll have to check on any other distros. The good news is that VMWare 6.5 is working towards better DirectX support, so you'll be able to possibly run this when that comes out final on VMWare Workstation.
But for now, if you're running Linux - this looks like a must have.