Staples offers the Seagate FreeAgent GoFlex 1TB Portable USB 2.0 External Hard Drive, model no. STAA1000100, for $79.99. With free shipping, that’s $0.08/GB, tied with our April mention and the lowest total price could find by $10. Sales tax is added where applicable. The enclosed 2.5″ hard drive features a 16MB cache and runs at 5400 rpm.