newegg offers the 9.3-oz. Buffalo MiniStation 1TB Portable ThunderBolt / USB 3.0 External Hard Drive, model no. HD-PA1.0TU3, for $229.99. Coupon code "EMCJJJG43" cuts it to $199.99. (Amazon charges the same.) With free shipping, that's $0.20/GB and the lowest total price we could find by $10. This portable hard drive is bus-powered; it doesn't require an external adapter. Coupon expires November 19.