ANTOnline via Buy.com offers the Zalman Accessory Notebook Cooler
in Black, model no. ZM-NC3000S, for
with free shipping. (mwave
charges pennies more.) That's the lowest total price we could find by a buck. This cooler is designed for notebooks of 17" or less and features a 720 rpm fan, USB connectivity, and more.
Buy.com's price has since dropped to $46.73 with free shipping.
Update 2: Buy.com's price has since risen again to $47.77 with free shipping.