Newegg offers the Corsair Builder Series 430-watt ATX Active PFC Power Supply, model no. CX430, for $39.99. This $20 mail-in rebate cuts it to $19.99. With free shipping, that's the lowest total price we could find by $25, although we saw it for $4 less two weeks ago. This 80 Plus Bronze-certified PSU features a 120mm fan and four serial ATA power connectors. Rebate expires April 14.