Thanks for the response guys.

I originally had planned on going with a quad core but thought I wouldn't be doing much multi tasking. That was until I realized that I could effectively multi box now and it's something I had always been interested in trying but never had the comp to do so. So I ended up going with the core 2 duo because they have outperformed the quads in single game applications and that will always be my primary concern outside of multi-boxing WoW.

How effective would it be to add another GTX260 Video card into the mix? How much impact do video cards have on multi-boxing? The motherboard can effectively run triple SLI so if push ever came to shove I could run 3 GTX260's.