3GB Memory Upgrade for MacBook Pro and iMac 2006-2008
Timetec Hynix IC 4GB Compatible for Apple DDR3 1067MHz / 1066MHz PC3-8500 SODIMM Memory RAM Upgrade for Late 2008, Early/Mid/Late 2009, Mid 2010 MacBook, MacBook Pro, iMac, Mac Mini (4GB) - Walmart.com
Apple iMac "Core 2 Duo" 2.66 20-Inch (Early 2008) , 320 GB Hard Drive, 2 GB RAM - Imagine41
identiMac :: Model Detail - iMac 20 inch 2.66 GHz Core 2 Duo E8335 (Early 2008)
OWC 4GB RAM (1x4GB) iMac Early 2008 - 4mac
Memory Upgrades for Apple iMac 2008 - Up to 6GB
6GB (4GB & 2GB SODIMM Upgrade Kit) DDR2-800 for Apple iMac 2008 Core 2 Duo 8,1 - Newegg.com