Zipzoomfly has Corsair VSA2GSDS667D2 2GB DDR2 SODIMM 200-Pin Mac Notebook Memory Retail for $9.99 after $20 mail-in rebate (Exp 02/01)with free shipping.
NOTE: The title at Zipzoomfly states that the memory is for mac, however most reports say that it will work just as well in a compatible windows laptop.