I am soon to be upgrading my pc and just want a few opinions, so far im thinking of getting an AMD 8 core 8350 with another 6970 (already have one) and a 650TI for physx. Now I know its quite a bit to run but 1. is this a good idea and 2. will a 750w psu be able to run all of this. Also would it be better to just get one much better video card and sell the 6970 i already have.