Just tossed in 2x7950's today.. System is a 2500k @ 4.5ghz, 8 gigs of ram, 90gig ssd (soon to be upgraded) Blu-ray drive.. Pretty happy with it.. Video cards stay pretty cool even in this tiny case lol.. There OC to 1100 at the moment..
Here is my newly transplanted dialy driver. Nothing to special: Cooler Master Storm Stryker case, Asus P8P67 deluxe, Intel i7 2600K (with a Corsair H70), EVGA 680 GTX (with backplate preinstalled), Corsair AX860 PSU, 16 GB Corsair 1600MHz, 2 TB WD Black spinning Win7 home premium. Waiting for new case from MM for 'The Beast' build. Shameless plug I know, but check the worklogs for 'The Beast' .
Was having issues with some Corsair Vengeance Ram causing my computer to crash whenever it would sleep, also had issues with my XFX HD 7950 crashing. Combining those with my Intel 520 120gb being full it was time for some upgrades