@HEXiT: you are wrong. The gtx 780ti is a 250w MAX gpu(uses quite a bit less when actually playing games). The i7 hex core is a 130w MAX cpu that uses much less than that while gaming. The OP may well overclock the cpu so it might use a bit more power while gaming, but doubt they will oc the graphics cards because of the lack of airflow. If you look at the back of the corsair 600t, it actually has 8 expansion slots, so you can use 4 2slot cards. Actually, when I think about it, I think I read somewhere a stick of ram can run 20-25w. 8 sticks could be up to 200w. Or maybe that is total ram wattage(20-25).
I will say two blu-ray drives at that price seems a tad ridiculous, but those and the other remaining parts should draw relatively minimal power.
As to the question of how well this will run the mentioned games(at 12 Mpixels), I'd say you can run those games on high or max with pretty decent frame rates(but you may want to ditch the 4th 780ti. 3way scaling is ok but 4way scaling kind of sucks).