This Hard Drive

OfficeDepot.com has the Western Digital Caviar GP WD5000CSRTL 500GB 5400 to 7200 RPM 16MB Cache SATA 3.0Gb/s Hard Drive for $100 with free shipping. WD Caviar GP drives use less power and support quieter, cooler-running desktop PCs and external storage devices. Western Digital covers this product with a 3-year warranty.

Product description from OfficeDepot.com:

• Energy-conscious internal drive reduces power consumption so it saves you on electr!
  icity costs.
• Internal Serial ATA hard drive offers high-speed performance with a maximum transfer rate of 3Gb/s and a 16MB cache.
• Large storage capacity of 500GB storage capacity.
• Technologically advanced acoustics minimize noise levels to a whisper.
• Designed for high-performance computers, multimedia and gaming systems.
• High reliability and cool operation, even in high-heat environments.
• Compatible with desktop computers running Windows 2000/XP/Vista. Requires an available SATA connection.
• Backed by the manufacturer’s 1-year limited warranty.

Product link.