iMAC 24" Mid 2007 Intel Core 2 Duo 2.4GHz 4GB Ram 320 HD OS X El Capitan (A1225) | eBay
Memory Upgrades for Apple iMac 2007 - Up to 6GB
iMac (2007-2009) Memory Installation Video - YouTube
Good ol' reliable 2007 MacBook running an old as dirt version of chrome for OS X Lion... max ram and ssd really make a difference for these old things, doesn't hurt to
iMac Intel 20" Mid 2007 EMC 2133 - realrecyclers
apple-history.com / iMac (Mid 2007)
iMac | 2.4 GHz Core 2 Duo | 24 Inch | Aluminium - Techable.com