Buy.com has a CoolMax 600W SLI & Crossfire Certified ATX Power Supply for $53.99 after $30 rebate with Free Shipping.
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- 600 Watt ATX 12V Ver 2.0 AC Power Supply contains 3 speed fan control switch. High quality gold-coated fan guard. Cable-tube on main power cables for better cable routing and neatness. Over voltage protection, short circuit protection on all output levels. All DC output wires have 450mm length. SLi and Crossfire ready