From the Toys section:
Amazon.com offers the Sam Hecht-designed LaCie Little Disk 500GB 2.5" Portable USB 2.0 External Hard Drive, model no. 301841, for $99.95 with free shipping ($0.20/GB). That’s the lowest total price we could find by $6, although it was a buck less in February (since expired.) This USB-powered 2.5" hard drive runs at 5400 rpm and features an 8MB cache.