CMS 4GB (2X2GB) DDR2 5300 667MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac (Mid 2007) Pc2-5300 - A37 at Amazon.com
Apple iMac 20″ Core 2 Duo T7300 2.0GHz 2GB 250GB A1224 MA876LL/A Refurbished – Computechsale
Sold: 24-inch iMac Mid-2007 // $495 - Denver Mac Repair
Memory Upgrades for Apple iMac 2011 Up to 32GB
A-Tech for Apple 4GB Kit 2X 2GB PC2-5300 667MHz Mac Mini iMac Late 2006 Late 2008 Mid 2007 A1208 MA589LL A1207 MA456LL A1200 MB138LL/A A1176 MB139LL/A Memory RAM at Amazon.com