Today Macmall.com has the Hitachi GST SimpleDrive II 1TB Turbo USB External Hard Drive (model no. 0S00165) as its Deal of the Day and priced at $79.99. That makes it $50 less than its $129.99 list price, and turns it into the best cost we could find for this particular external hard drive. Shipping rates start at $12.99 and sales tax applies for residents of California, Tennessee, and Wisconsin.

Upgrade to the Iomega Prestige 1.5TB USB External Hard Drive at Amazon.com, which currently sports a four out of five-star rating and comes equipped with the Iomega Protection Suite software. The Iomega has dropped in price to $135.49 and includes FREE shipping. The Western Digital 2TB My Book Studio Edition II External Hard Drive is on sale today at BHphotovideo.com, and is priced at $239 with FREE shipping included. Offering a more affordable and portable solution is Ecost.com which currently has the refurbished Buffalo 320GB MiniStation USB Portable Hard Drive on for $49.99, with shipping rates starting at $9.99.

The Hitachi GST SimpleDrive II 1TB Turbo USB External Hard Drive features built-in cooling vents for quiet performance, free unlimited technical support, and compatibility with both Mac and PC computers. The SimpleDrive file protection technology enables users to automatically save copies of files on the drive and on secure servers. Additionally, support is offered for plug-and-play functionality, and the outer-casing is designed to help prevent damage when water or pop is spilled on it.