I would highly suggest the Corsair AX series... JonnyGuru knows his PSU stuff, and the AX series got one of the best recommendations from him for build quality and electrical performance. It's also 80+ Gold efficiency rated.
They only have AX850 and AX1200 options for the wattage range you are looking for, so that may simplify things. I'd suggest consulting
JonnyGuru's site before purchasing any other brand (especially OCZ).