NCIX offers the Western Digital My Passport Essential 1TB Portable USB 3.0 External Hard Drive in Black, model no. WDBACX0010BBK-NESN, for $99.99 with free shipping ($0.10/GB). That's the lowest total price we could find by $49, although we saw it for $20 less last summer. The Essential series features 256-bit hardware-based encryption, automatic backup, and WD SmartWare software. Deal ends January 18.