Kingston ValueRAM 4GB 667MHz DDR2 Non-ECC CL5 DIMM (Kit of 2) Desktop Memory at Amazon.com
OWC 4GB (2 x 2GB) PC5300 DDR2 667MHz SO-DIMMs Memory RAM Upgrade Compatible with MacBook, MacBook Pro, iMac, Mac Mini Core 2 Duo Models (OWC5300DDR2S4GP) at Amazon.com
6GB (4GB+2GB) DDR2 800MHz PC2-6400 200-PIN SODIMM IMAC 2008 & MACBOOK 2009 RAM on eBid United States | 216960365