A-Tech for Apple 6GB Kit (1x2GB + 1x4GB) DDR2 667MHz PC2-5300 200-pin SODIMM for MacBook (Late 2007, Early 2008, Early 2009), MacBook Pro (Mid 2007, Early 2008), iMac (Mid 2007) - Memory RAM Upgrade at Amazon.com
4GB 2x 2GB PC2-5300 DDR2 667 MHz Memory RAM for ASUS P5 GC-MX 1333 - Walmart.com - Walmart.com
New 4GB Apple Memory Module RAM DDR2 PC2-5300. 2×2gb SO-DIMMS MA940G/B | eBay