I have an old DFI Lanparty which uses a socket 939 and DDR400. I have a AMDx2 4800+, dual nVidia 7950s, and a 64Gig 10k RPM drive. This is a simular system to yours. You would think that system would run the heck out of 3 or 4 sessions of WoW.

What is suprizing to me is just how much faster my Core2Duo Q6700 is. Both have a 10K RPM Raptor, Both have nVidia SLI, Both have 4 Gigs RAM. DDR2 1066 is a big plus over DDR 400. The Core2Duos are much faster than AMD dual cores. I find that I am better off running 4 sessions on the Core2Duo system than 2 sessions on each.

Go figure.

-j