Amazon.com has the Toshiba MK3252GSX 320GB 2.5-Inch 5400RPM SATA OEM Notebook Hard Drive for $67.99. The MK3252GSX incorporates the Serial ATA (SATA) 3.0Gbps interface and is ATA-8 compliant, supporting high media transfer rates of up to 759 megabytes per second.

B&H has the LaCie 500GB Rugged Hard Drive for $134.95 with Free Shipping. The exclusive creation of world-renown designer Neil Poulton, this portable storage solution offers the supreme speed of FireWire 800 along with FireWire 400 and Hi-Speed USB 2.0 interfaces for true universal connectivity.