I am now looking at the i7 920. Here is my current plan of attack: Wishlist on NewEgg
I already own a Antec P182 I picked up during Black Friday. Then I am looking at 2 of these Dell LCD Screens to be the flanking monitors. Pivoted 90 of course.

Basicly a Core i7 920, 12GB of Triple Channel Ram, 2x 4850 with 1GB each.

Hopefully that is enough memory between the System RAM and the GPU RAM that I won't have to pull anything off the hard drive once its loaded.

Think that will run Dalaran?