I'd get XP Pro and just "modify" it. I use classic mode, then just shutoff like half the services u dont use. I like it cuz its totally flexible, you can have it all spruced up looking and awesome with your own custom made themes if you want. Or you can go for the bare stripped metal classic, everything off...and you get really fast response from your PC. and T3 is a really good game if you have the right hardware to aplay it on...kinda like a mediaval splintercell. Play it at night and its really fun, it was made for surround sound 2...so get like 7.1 speakers and then you will see how fun it is.