As one of its daily deals, newegg offers the Seagate Backup Plus 1TB Portable USB 3.0 External Hard Drive, model no. STBU1000101, for $89.99 with free shipping ($0.09/GB). (Amazon offers it for the same price.) That's the lowest total price we could find by $9. 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 today.