Adorama offers the 8.2-oz. Buffalo 1TB MiniStation Plus USB 3.0 Portable Hard Drive, model no. HD-PNT1.0U3B, for $79.95 with free shipping ($0.08/GB; Amazon charges a couple cents more.) That's the lowest total price we could find by $9, although we saw it for $10 less in November. This portable hard drive is USB powered; it doesn't require an external adapter. It's backward compatible with USB 2.0 ports.