That cpu and gpu seem like a decent combination. The only thing I see is your psu. I'd recommend getting one from a quality brand like Seasonic, XFX, Corsair, etc. If you don't plan on Xfire, than you don't need more than 600w, but if you do want to Xfire, I'd recommend something around 750w-850w. Also make sure you get a power supply with an 80+ certification and a single 12v rail so the power is applied evenly.