How to Upgrade iMac Hard Drive (2007, 2008, 2009): EveryMac.com
2008 Apple 20" iMac A1224 Video Card ATI Radeon HD 2600 Pro 256MB 661-4436 (NW2) | eBay
Apple iMac SSD Upgrade für iMac 20 inch A1224 8,1 oder 24 inch 8,1 A1225 Early 2008 | Comtecshop24.net
Apple iMac A1224 20" Desktop - MA876LL/A (August, 2007) for sale online | eBay
Apple iMac Repair, iMac Upgrade, iMac SSD Upgrade – TECHWERX
iMac Upgrade Kits – iFixit Store
IMAC A1224 Replace hard disk with SSD - YouTube
A-Tech for Apple 6GB Kit (1x2GB + 1x4GB) DDR2 667MHz PC2-5300 200-pin SODIMM for MacBook (Late 2007, Early 2008, Early 2009), MacBook Pro (Mid 2007, Early 2008), iMac (Mid 2007) - Memory RAM Upgrade at Amazon.com