Don't Upgrade The RAM In Your New Apple iMac, Do This Instead
CMS 8GB (2X4GB) DDR3 8500 1066MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Apple® iMac Core 2 Duo 2.93 24" Early 2009 MB419Ll/A - A35 at Amazon.com
Install memory in an iMac - Apple Support
A-Tech for Apple 2GB DDR3 1067MHz / 1066MHz PC3-8500 SODIMM iMac (Early/Mid/Late 2009, 20/24 inch, 21.5/27 inch), Mac Mini (Early/Late 2009 Mid 2010) Memory RAM Upgrade Module at Amazon.com
8GB -2x4GB Memory Ram Upgrade 24" Apple iMac 9.1 3.06GHz Core 2 Duo Early 2009 | eBay
A-Tech for Apple 2GB DDR3 1067MHz / 1066MHz PC3-8500 SODIMM iMac (Early/Mid/Late 2009, 20/24 inch, 21.5/27 inch), Mac Mini (Early/Late 2009 Mid 2010) Memory RAM Upgrade Module at Amazon.com
iMac Intel 24" Early 2009 EMC 2267 - used original spareparts for Macs
Install memory in an iMac - Apple Support
Apple iMac 24-inch Early 2009 - 2.66GHz Core 2 Duo Apple RAM Memory | Kingston
Early 2009 model iMac Computer, DDR3 8GB (2x4GB) RAM Replacement - YouTube
How to Upgrade Memory in a Late 2009 21.5-inch or 27-inch iMac - YouTube
iMac Intel 24" EMC 2267 Repair - iFixit
iMac Early 2009 (20-inch and 24-inch) RAM Upgrade Dallas – Apple Mac Computer Repair Dallas , Laptop ,Desktop ,iMac ,MacBook iPhone iPad Data Recovery ,Virus
iMac (2009) RAM & Storage Upgrades
iMac 21.5" Late 2009 (10,1) - CPU Upgrade E8600 | MacRumors Forums