TigerDirect offers the Western Digital 750GB Elements SE Portable USB 2.0 External Hard Drive, model no. WDBABV7500ABK-NESN, for $74.99. This $20 mail-in rebate drops it to $54.99. With $2.29 for shipping, that's $0.08/GB and the lowest total price we could find by $8, although we saw it for $5 less a month ago. This 7.1-oz. portable bus-powered drive includes a USB 2.0 cable. Rebate expires today.