Newegg offers the Rosewill CAPSTONE 750-watt ATX PSU, model no. CAPSTONE-750-M, for $59.99. A $20 mail-in rebate cuts the price to $39.99. With free shipping, that's $20 below our mention from five days ago and the lowest total price we've seen. (It's a current low by $20.) This 80 PLUS Gold-certified power supply features an efficiency up to 92%, 140mm silent fan, mesh sleeves on all cables, and is SLI / CrossFire ready. Rebate expires November 24.
Note: If you haven't yet, use Newegg's Android app and pay using Google Wallet to cut it further to $24.99. (This discount can only be used once per account.)