Western Digital offers its factory-refurbished Western Digital 2TB My Book Essential USB 2.0 External Hard Drive, model no. WDBAAF0020HBK-NESN, for $99.99 with free shipping ($0.05/GB). That's tied with last month's refurb mention and $61 under the lowest total price we could find for a new one. It features password protection with hardware encryption. A 6-month Western Digital warranty applies.