Seagate Barracuda 7200.9 - Hard drive - 300GB - internal - 3.5in - Ultra ATA/100 $109.99

The Seagate Barracuda 7200.9 is the industry's most comprehensive family of 3.5-inch drives, providing leading technology targeted at PATA servers, mainstream and high-performance PCs/workstations and media PCs. Backed by an industry-leading unprecedented five-year warranty.

Buy.com is carrying this 300GB Internal Hard Drive for $109.99