Newegg has the Cavalry 500GB USB 2.0 External Hard Drive at $76.99 with free shipping
Experience portable drive performance like never before with the Cavalry 500GB External Hard Drive! Clad in durable aluminum, it features a high speed disk with a 8MB cache and USB 2.0 connections capable of moving your data with only a 10ms seek time on a disk spinning at 7200rpm. The sturdy chassis supports quick plug and play connections for both Windows and Mac, and it’s a stackable chassis for multiple installations.
The hard drive features an active LED indicator for power and data access. This is a huge portable drive ready for any environment and anything you can throw at it!