Generally anything from Corsair(non-CX) series, OCZ, Pc Power and Cooling, Seasonic, XFX, Antec will do you just fine. All are quality manufacturers, and most of the time you can find a good deal on one of them. I'd also suggest you not buy anything rated at less than a bronze efficiency, although it's not really worth paying more to upgrade from bronze to silver/gold/platinum either. For example, right now I'd buy:http://pcpartpicker.com/part/xfx-power-supply-p1750bnlg9
Same price as some good bronze units, and you get Silver and semi-modular cables.