J&R offers the Western Digital Elements 3TB External USB 2.0 Hard Drive, model no. WDBAAU0030HBK-NESN, for $119.99. Apply coupon code “ATJANDR” to cut it to $109.99. With free shipping, that’s $0.04/GB and the lowest total price we could find by $10, although we saw it for $6 less ten days. Although formatted for a PC, it can be easily reformatted for a Mac.