TigerDirect offers the Seagate Backup 1TB USB 3.0 Portable Hard Drive in Black, model no. STBU1000100, for the in-cart price of $79.99. This $20 mail-in rebate cuts it to $59.99. With $3.69 for shipping, that's $0.06/GB, $6 under our mention from three days ago, and the lowest total price we could find by $13. 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 March 22.