I've got a kid who wants a CPU that will support WoW. It is currently running on our home computer but it is using way too much disk space. If he's going to do nothing with this new comp except play WoW, what does he need? I know that all modern computers these days will likely have enough RAM and disk space etc. but I'd like to set some minimums so he can get one as cheap as possible and not get extras features he doesn't need. I'm presuming the most critical factor is the video card's speed and amount of memory.