NewEgg.com has the Western Digital Elements 640GB USB 2.0 Black Portable Hard Drive, model no. WDBAAR6400ABK-NESN, for $89.99 (119.99 – 20 instant savings – 10 coupon) with Free Shipping for a limited time. To get discount, use the coupon code: EMCYNNP63 at checkout. Coupon expires March 1, 2010.

The Western Digital Elements 640GB USB 2.0 Black Portable Hard Drive features a compact design, reliability, USB powered, plug and play functionality, and one year warranty.