Office Depot offers the Seagate FreeAgent GoFlex 750GB USB 2.0 External Hard Drive, model no. STAD750101, for $69.99. With free shipping, that’s $0.09/GB and the lowest total price we could find by $48. (We listed it for $10 less six weeks ago, since expired.) Sales tax is added where applicable. This drive runs at 7200 rpm and features auto backup software.