Just putting this out there:
Xigmatek HDT-S1283 + bolt thru + MX2
eVGA 780i SLI
SLI eVGA GTX 260
650W Corsair PSU (should be enough)
CM 690 (1200/900 etc.. is overrated IMO (loud too!))
4GB GSkill DDR2 800
Everything else needed...
$1500, $1410 after MIR.
Should be good for 4GHz, SLI 260s will run anything out there for a long time, and you can always step up to 280s etc...
Same goes with motherboard, you can step that up too. (I love eVGA if you couldn't tell before)
If its too much you can switch the 780i for a 750i and switch the SLI for a GTX 280. The 4870X2 is faster than the 280, but its also $150 more, and compared to eVGA, Sapphire might as well not have customer support (they don't have much of a warranty anyway)
So 260 sli is better then hd480x2?
Edited by Dotter - 10/5/08 at 9:29pm