MicroMemory 2GB KIT DDR2 667MHZ ECC/REG KIT of 2X 1GB DIMM, MMG1065/2G at Amazon.com
Amazon.com: OWC 2GB PC5300 DDR2 667MHz SO-DIMM Memory Compatible with MacBook, MacBook Pro, iMac, and Mac Mini Models with Core 2 Duo Processor (OWC5300DDR2S2GB) : Everything Else