Viking 512MB Compact Flash Card - CF512M $30.99

About one-third the size and 40% the thickness of a Type II PC card, CompactFlash cards offer complete PCMCIA-ATA functionality and compatibility. They are rugged, consume low power, are transportable, and can link numerous types of electronic devices, including digital cameras, digital music players, PDAs and more.

Buy.com is carrying this 512MB Compact Flash Card for $30.99