Seagate Barracuda 7200.9 500GB 3.5" SATA 3.0Gb/s Hard Drive - OEM $279.95

The Seagate Barracuda 7200.9 with SATA 3Gb/s and Native Command Queuing(NCQ) is the industry's most comprehensive 3.5-inch drive, providing leading technology targeted at SATA servers, mainstream and high-performance PCs/workstations, PC gaming systems and media PCs.

Buy.com is carrying this 500GB Internal Hard Drive for $279.95