ok seroius post this time...
first decide on the CPU you want. I recommend the Athlon XP2400 about $250
then find a board that suits it... MSI has been real good to me (ASUS on the other hand has major repair support issues in my dealings)
Soyo is also very good.
then you need new memory for the board. minnium 512k for that powerful of a system $150-$200
also a new heatsink for the CPU ... go all copper not just copper contact $45
then a new case with @ least 4+ fans. $90-$250
then a new power supply that the powerful processor needs... minium $90
all other parts (vid card, sound, network, CDrom, Floppy, Hard drive) can be saved and used.
i would also recommend going with XP to control that power (win98 has some issues with over 256 memory and high BUS speeds sometimes)
you should also re-format your HD and reload OS. the bugs with the new Motherboard drivers can be a pain in the arse if you dont.
that should get you going on the right track i hope
