As one of its daily deals, Best Buy offers the Seagate FreeAgent GoFlex 500GB Portable USB 2.0 External Hard Drive, model no. STAA500101, for $57.99 with free shipping ($0.12/GB). That's $2 under our June mention and the lowest total price we could find now by $16. Sales tax is added where applicable. This 2.5" drive features an 8MB cache. Deal ends today.