Viking 512MB USB 2.0 Drive $19.99

The Viking InterWorks USB00512L2 is the smallest, removable, high-speed USB compatible data storage system using flash technology. The USB Drive will revolutionize the way you store, transfer and carry your files. Moving files from one computer to another has never been easier. With cross platform capabilities, the USB Drive allows you to effortlessly store and transfer files via the USB port on your computer with no driver installation required. The high speed Read/Write operation eliminates latency and seek-time associated with a hard disk drive. Flash storage incorporates an intelligent power management scheme that provides the lowest total power consumption.

Buy.com is carrying this 512MB USB Thumb Drive for $19.99