My roommate downstair is playing on a system fairly well with the followin setup:
2x P3 600Mhz
128mb ram
Geforce 2 GTS
My roommate upstais is playing with:
Celeron 2.0
256mb ram
Onboard Intel graphics
It lags kinda hard now and then, but it plays. We are going to get some more ram and maybe a 15k SCSI drive as a swap drive. It seems on these machines or on mine (3200+ XP, 512 DDR, Radeon 9000Pro) that the lag occurs when loading textures. I think RAM (video and system) are one of the most important things to have for this game.
Edited, Sun Nov 28 09:21:00 2004 by GamblorWoW