I'm still rock'n a 24 inch iMac. 2.93 Ghz with and OWC 8 Gig Ram upgrade. I'm running Final Cut Pro X on it and believe it or not it runs ok. Not great but ok. I have to do all my work with Proxy media. When I am ready to output to the final product, compressor will take over night and then some with two hours Of HD footage. Its slow but it works until I can save some more money. who else is editing with Final Cut Pro on an older iMac?