I use EVGA power supplies and they are practically silent at any load.
The EVGA G2 and GS series PSU have very good OEM (Super Flower and SeaSonic respectively) and they are very competitive in price. They are also better than the RMi series and just about as good as the AX series PSUs from Corsair which are top quality.
Anyways, here are the two PSUs I suggest.
http://pcpartpicker.com/parts/compare/evga-power-supply-220g20850xr%2Cevga-power-supply-220gs0850v1/