Had some fun today replacing a dead Hard Drive in a Late 2006 Core 2 Duo iMac and cloning Snow Leopard onto it from another 2006 iMac over FireWire 400 in Target
iMac A1225 A1207 A1224 A1200 2TB Hard Drive 500GB 750GB 1TB 20 24 inch 2006 2007 2008 2009 3.5 7200 RPM replacement DIY Parts replacement Hard Drives
iMac Intel 17" Hard Drive Replacement - iFixit Repair Guide