Western Digital 640GB Portable USB 2.0 Hard Drive

Dell Home offers the Western Digital Elements 640GB Portable USB 2.0 External Hard Drive, model no. WDBAAR6400ABK-NESN, for $99.99. Apply coupon code "BT?BG87Z21PJW9" and it falls to $59.99. With free shipping, that's $0.09/GB, $15 under our mention from three weeks ago, and the lowest total price we've seen for any 640GB portable hard drive. (It's also a current price low by $25.) Sales tax is added where applicable. This drive is powered via USB; it doesn't require a separate power adapter. Deal ends May 31.