Western Digital offers its factory-refurbished Western Digital My Book Studio LX 1TB FireWire 800 / USB 2.0 External Hard Drive, model no. WDBAAJ0010HSL-NESN, for $89.99 with free shipping ($0.09/GB). That’s $50 under the lowest total price we could find for a new one. This drive runs at 5400 rpm and includes a “smart display” that shows the capacity and storage status even when the drive is unplugged. Although formatted for Macs, it can easily be reformatted for a PC. A 6-month Western Digital warranty applies.