http://walletup.com/i/postimg/20101129_234000p.jpg

Western Digital Elements 320GB 2.5″ USB Portable Hard Drive for $44.94 Shipped

Western Digital Elements 320GB 2.5″ USB Portable Hard Drive for $39.99.  Shipping is $4.95, so the total comes to $44.94 shipped.  Here is a screenshot for your reference. This 2.5″ portable drive is USB powered.  Most places have it for about $69.