Macmall.com’s deal of the day is the Fantom Drives GreenDrive 1TB External eSATA hard drive (model no. GD1000EU) priced at $69.99 after the $40 mail-in-rebate, which is 44% less than its $124.95 list price and the lowest cost we could find for this hard drive by about $40. Shipping rates start at $12.99 and sales tax applies for residents of California, Tennessee and Wisconsin.

Upgrade to the WD My Book Essential 1.5TB external hard drive at Buydig.com, which unfortunately doesn’t carry the eco-friendly technology found in the featured product, but does include SmartWare data management and backup software for automatically updating stored data. It’s currently priced at $139 and has FREE shipping included. Continue up the ladder with the LaCie 2big Quadra External 2TB hard drive that’s dropped in price to $294.93, and has also included FREE shipping. However, if you are a fan of the eco-friendly storage systems the Western Digital 4TB My Book Studio Edition II hard drive with quad interface is available for the sale price of $449, and has been specifically formatted for Macs and Apple’s Time Machine.

The Fantom GreenDrive features the latest advances in power saving technology and it is compliant with the Restriction of Hazardous Substances Directive. This external hard drive has 1TB of storage space for files, music, movies, games and more and transfer data via the USB 2.0 or eSATA interface. It is powered by an included 110/220 V universal power supply and is compatible with Mac (OS 10.2 +) and Windows (2000 +). Included is a two year warranty. Dimensions: 7.75" x 4.5" x 1.37"; weight 2.4lbs