Amazon offers the Western Digital Elements 3TB USB 2.0 External Hard Drive, model no. WDBAAU0030HBK-NESN, for $113.99 with free shipping. That's $0.04/GB, $6 under our mention from six days ago, and the lowest total price we've seen. (It's also a current price low by $11.) This drive uses GreenPower technology to reduce power consumption by up to 30%.