There are two that I think are a pretty sweet deal at Microcenter, which are
the Corsair CX Series CX750M 750 Watt ATX Modular Power Supply for $89.99 with a bronze rating. (semi-modular)
Then there is the Corsair CS Series CS750M 750 Watt ATX Modular Power Supply for $119.99 with a gold rating. (semi-modular)
There are also the ones on Newegg which are the
CORSAIR HXi HX750i (CP-9020072) 750W ATX12V / EPS12V 80 PLUS PLATINUM Certified Full Modular Power Supply for $169.99 with a Platinum(best) rating.
Then there also is the Rosewill FORTRESS-750 750W Continuous @50°C, Intel Haswell Ready, 80 PLUS PLATINUM, ATX12V v2.31 & EPS12V v2.92, SLI/CrossFire Ready, Active PFC Power Supply for $129.99 with a Platinum rating, the only bad part about the Rosewill one is that it is not modular at all whereas the Corsair one is full modular, so pick your poison.