I am going to be building my new system for the first time, based on an intel i5 3570k, asrock extreme4 z77, corsair vengeance 1600mhz, and gigabyte radeon hd 7950 3gb, and the only component I have left to choose is the power supply. My budget is $100 (for the psu), and I was wondering what the best 750w power supply I could get for that money is. I am currently trying to choose between the XFX core 750w and the rosewill hive modular 750w. I need the power supply to be durable, and I chose 750w so that I would have enough power to get a second graphics if I ever want to. I would appreciate either a comparison of which is better, or a recomendation of another power supply I should consider.