I am really excited about Vista, but I want to be able to run certain apps (mostly games) on XP. Well, I found a sweet article on Lifehacker that shows us how to do both!
This is a good option for Admins. If you set this up on your master computer, and then you can take an image of that computer. This allows the best of both XP and Vista!
Here is the article:
Dual boot Windows XP on a pre-installed Vista PC