parts-quick 8GB (2 X 4GB) DDR2 Desktop Memory PC2-5300 240 pin 667MHz Non-ECC DIMM RAM at Amazon.com
Zopsc DDR2 4GB RAM 800MHz Memory Module for AMD CPU Stable Fast Data Transmission 240PIN for High Anti-Interference and Antistatic for Desktop Computer, Plug and Play at Amazon.com
Crucial 4GB Single DDR2 667MHz (PC2-5300) CL5 SODIMM 200-Pin Notebook Memory Module CT51264AC667 at Amazon.com
New 4GB 4x1GB DDR2 PC2-5300 667MHz RAM Memory for PC Desktop at Amazon.com