Fry's Electronics again offers the Western Digital 2TB My Book Duo Thunderbolt External Hard Drive, model no. WDBUWZ0020JBK-NESN, for $299.99 with free shipping. That's tied with our mention from earlier this month as the lowest total price we've seen. (It's a current low by $19, although most sellers charge $400 or more.) It features two 10,000 rpm WD VelociRaptor drives, 10Gb/s transfer speeds, dual Thunderbolt ports, and RAID 0, 1, and JBOD support.