Western Digital 320GB Portable USB 2.0 Hard Drive

Dell Small Business offers the Western Digital Elements 320GB Portable USB 2.0 External Hard Drive, model no. WDBAAR3200ABK-NESN, for $49.99 with free shipping ($0.16/GB). That's $5 under last month's mention and the lowest total price we've seen for this portable hard drive. (It's also a current price low by $10.) Sales tax is added where applicable. This drive is powered via USB; it doesn't require a separate power adapter.

Update: It's now on backorder, but can still be purchased at this price.