Stayin' Alive: Upgrading the CPU, Hard Drive, and RAM on a 2006 iMac
iMac Intel 17", 20", and 24" 2006 SSD Upgrade Bundle - iFixit Store
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 : Electronics
How-To: Now's the right time to swap your old iMac's hard drive for a fast new SSD - 9to5Mac