Newegg has the Cooler Master RS-460-PSAR-J3 460W ATX12V V2.31 Power Supply for $40 - $5 with coupon code PSU6296 [Exp 7/6] = $35 with free shipping. Features dual +12V rails and one 4+4 pin for +12V CPU connector. The green power design meets Energy Star and Blue Angel requirements.