Buy.com via eBay offers the Seagate Backup 1TB USB 3.0 Portable Hard Drive in Black, model no. STBU1000100, for $52.99 with free shipping. That's $0.05/GB, $7 under our mention from three weeks ago, and the best no-rebate price we've seen for this drive in any color. (It's also the lowest price we could find today by $12.) This drive is compatible with Windows and Mac and features a USB 3.0 adapter, 18" USB 2.0 / 3.0 cable, and pre-loaded backup software. Deal ends November 24 at 11 am ET.