Amazon.com has the HP 2133 netbook for $299. The 2133 features an 8.9-inch screen, 1GHz VIA C7-M processor, 512MB of RAM, a 4GB flash hard drive, and Linux as the operating system.

Those specs are about as minimal as they get but $299 is a pretty low price for this particular netbook.

HP 2133 [Amazon.com]