As one of its daily deals, Best Buy offers the Seagate Backup 1TB USB 3.0 Portable Hard Drive in Black, model no. STBU1000100, for $69.99 with free shipping. That's $0.07/GB and the lowest total price we could find by $6, although it was $2 less two weeks ago. 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 today.