This thread will be quite geeky, so unless you know your hardware you should probably keep out. (and i don't want to hear what brand your computer is. Dell is not a valid answer)
Tzo, what's your computer hardware?
Put together a computer out of these parts recently (my old one sucked really badly. )
Asus K8N mobo
AMD Athlon64 2800+ sock. 754 (clocked to @ 2.3 Ghz, running in full 64 bit mode. None of that 32 bit compability mode crappage)
2x256 Mb 400Mhz PC3200.
Geforce FX 5200 (this card sucks, but i really never play games so i don't give a damn; as long as it can push my screen to [email protected] i'm happy)
Some generic 120 Gb SATA hdd.