I blew out a couple lower-wattage power supplies on one of my old desktops before I finally got smart and went with a 500-watt power supply, so this is near and dear to my heart. RadioShack is offering the “Ultra X-Connect 500W Power Supply Green/Black” for $100 minus two $50 mail-in-rebates. Yes, this makes it FREE after rebates.

Head on over to SlickDeals.net to check it out.