First, you don't need 600W. (750W? Really?) He has a low end 760 motherboard so he can't even run CF. His system draw will be somewhere around 300-325W, so to suggest something twice as much if not more is just a bad idea. Here are four that I saw.
Here are 3 high quality PSU's to choose from. Any of them are good for your system-
http://pcpartpicker.com/parts/compare/antec-power-supply-hcg520m%2Cseasonic-power-supply-m12ii520bronze%2Cxfx-power-supply-xfxts550w/
First, you don't need 600W. (750W? Really?) He has a low end 760 motherboard so he can't even run CF. His system draw will be somewhere around 300-325W, so to suggest something twice as much if not more is just a bad idea. Here are four that I saw.