Today only until 3 pm ET (or 100% claimed), Amazon offers the Seagate Expansion 750GB USB 2.0 Portable External Hard Drive, model no. STAX750102, for $54.99. (Click the right arrow until you find it.) With free shipping, that's $0.07/GB, $5 under our December mention, and the lowest total price we could find by $30. This drive runs at 5400 rpm.