20-Inch iMac (Early 2009) Hard Drive Installation Video - YouTube
iMac (2007-2009) Memory Installation Video - YouTube
OFFTEK 4GB Replacement RAM Memory for Apple iMac 2.66GHz Intel Core 2 Duo - (24-Inch) (DDR3) (MB418LL/A - Early 2009) (DDR3-8500) Desktop Memory : Amazon.ca: Electronics
8GB (4GBx2) Team High Performance Memory RAM Upgrade For iMac “Core 2 Duo” 3.06 24-Inch (Early 2009) MB420LL/A iMac 9,1. The Memory Kit comes with Life Time Warranty. in Kuwait | Whizz Memory