Buy.com via eBay offers the Seagate Backup 1TB USB 3.0 Portable Hard Drive in Black, model no. STBU1000100, for $66.99 with free shipping. That's $0.07/GB, $3 under our mention from four weeks ago, and the lowest total price we've seen for this drive without rebate hassles. (It's also a current low by $12. Meanwhile, we saw it bundled with security software for $48 shipped after a substantial rebate last week.) This drive is compatible with Windows and Mac and features a USB 3.0 adapter, 18" USB 2.0 / 3.0 cable, pre-loaded backup software, and more. Deal ends May 31 at 11 am ET.