LaCie 500GB Little Disk USB 2.0 Mobile Hard Drive Designed by Sam Hecht for $99.95 shipped. More information about the designer can be found here. This 500GB portable USB hard drive does not require a separate power supply like most external hard drives and is smaller than most of them, making it much more convenient to carry around. It usually goes for about $119.

Originally posted earlier, this is just a friendly reminder.