Hey guys, Sorry you must have seen hundreds of topics like this but I've got to the point where I feel like I'm splitting hairs. I have been looking at purchasing an imac for sometime for editing HD video from my Canon hv40 using Final Cut. Now the two machines I am considering are a Refurbished 24'' imac; 24-inch glossy widescreen display 4GB memory 1TB hard drive 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW) NVIDIA GeForce GT 130 with 512MB memory £1,119.00 Or the new middle of the range 21.5 imac; 21.5-inch LED-backlit glossy widescreen display 4GB memory 1TB hard drive 8x SuperDrive (DVD±R DL/DVD±RW/CD-RW) ATI Radeon HD 4670 graphics with 256MB memory £1,225.00 As you can see the specs are nearly identical which is why I'm having trouble making a decision, The pros of the 24'' is obviously the bigger screen which would be nice whilst editing and watching movies and I'm not sure but does it have a better graphics card? The 21.5'' although having a smaller screen is LED backlit, so would that mean the picture quality would actually be better than the 24'' because that would be pretty important for me. Also its obviously new and you get the wireless keyboard and magic mouse. Again I'm not sure if the graphics card is better or worse? So what should I go for? Price wise theres so little in it but cleary one machine is brand new whilst the other is refurbished although from what I've read thats not a bad thing. The screen is probally the most important factor, I will be making videos in full 1080p and want them to look as good as possible, so even though its smaller would the 21.5 led screen produce better picture quality? Finally graphics cards, I have no idea which one is better, so any opionions would greatly help. Thank you any help would be very much appreciated.