CORSAIR Professional CMPSU-850AX 850W PSU $140 at Newegg

Newegg has the CORSAIR Professional Series Gold AX850 (CMPSU-850AX) 850W ATX12V v2.31 / EPS12V v2.92 80 PLUS GOLD Certified Modular Active PFC Power Supply for $170 - $20 off with coupon code EMCYTZT2997 [Exp 2/26] - $10 rebate [Exp 2/28] = $140 with free shipping. Features 90% efficiency at 50% load, single +12V rail, and an ultra-quiet 120mm fan.