Kingston ValueRAM 2GB DDR2 667MHz FBDIMM Desktop Server Memory at Amazon.com
Kingston ValueRAM 2GB DDR2 667MHz Single Rank Reg with Parity DIMM Desktop Server Memory at Amazon.com
Kingston 2GB 667MHz DDR2 Non-ECC CL5 SODIMM Notebook Memory (Pack of 2, 1Gb Each) (KVR667D2K2SO/2GR) at Amazon.com
Amazon.com: OWC 2GB (2 x 1GB) PC5300 DDR2 667MHz SO-DIMMs Memory Compatible with MacBook/MacBook Pro, iMac, and Mac Mini Models (OWC5300DDR2S2GP) : Everything Else