I'm fixing to upgrade all my stuff. Right now I have an Athlon XP 2200+, 512 ddr pc2100, and an ATI AIW radeon 9200. Not exactly sure what I'll get, but It'll be a damn sight better.
i got my old room mates 2500 barton up to 2.2 or whatnot just by changing the fsb to 200 all in one go. if you are using the mem in dual channel move it to single channel and i can garantee you will get 200mhz fsb.