TRENDnet TU3-S35 USB 3.0 External Hard Drive Enclosure for $15.99 shipped.  It is sold by Mwave through ebay.  Here is a screenshot for reference.  It features USB 3.0 connection for faster transfer and works with USB 2.0.  In addition, it is built with aluminum for heat dissipation.  Most places have the TRENDnet TU3-S35 USB 3.0 Enclosure for about $37.