Ending tonight, Staples offers the Toshiba 750GB Canvio Basics Portable USB 3.0 External Hard Drive, model no. HDTB107XK3AA, for $39.99 with free shipping. That's $10 under our September mention and tied as the lowest total price we've seen for this hard drive. (It's a current low by $19.) It runs at 5400 rpm and features an 8MB cache.