Buy.com offers the Fantom 1.5TB GreenDrive eSATA / USB 2.0 External Hard Drive, model no. GD1500EU, for $79.99 with free shipping. That's $0.05/GB and the lowest total price we could find by $14. This "green" drive claims to draw 40% less power than conventional drives. It features 2GB of free cloud backup for six months.