Originally posted by dom93hatch
Actually there are 2 reasons why I'm doing this.
1) Dell proprietary hardware = kaka. I can't run a decent power supply unless I buy one from Dell, which will cost me $ 91287391883772.88.
2) All I really need is a new processor and a new power supply, but that can't be changed unless I get a new motherboard. That way, I'll have a decent computer not only for games, but with all the 3D graphics work that I do. I need to cut down on rendering time! 
The fastest Athlon XP (Barton) should do well... a 2800+ should be more than sufficient, and is $200 less than the 3200+... also, when shopping for computer parts, try
www.newegg.com and
www.pricewatch.com