make sure you adjust the xp's firewall settings or you will find lots of things wont work that used to. I myself cant stand xp. the way it looks and all that so im sticking to win2k. I wish I could run doom3 but I have one thing keeping me from being able to do that. my video card is too old. its a geforce 4 ti4200 128mg card. all well my next upgrade is going to be a completly new computer. I think I am going to add some goodies like a couple windows, light fans, strip lights, etc etc. I added up everythign I want and it looks like a little over $2500 if I have someone else customize it (yeah like I am gonna do that). Only $2000 if I customize it hehe (maybe less depends on how far I want to get into customizing it myself or buying it customized).