Hi there, I am wanting to upgrade from my Macbook to an Imac, but have a few questions/doubts if anyone could please advise. money is a bit tight so I am looking at the current base model, 21.5-inch: 3.06GHz NVIDIA GeForce 9400M But if it is worth the jump I am willing to spend an extra couple of hundred £. the question is would it be better to jump to the 2nd model with ATI Radeon HD 4670 graphics or spend that money on increasing the RAM. This all obviously depends on what I use it for so basically the main applications I am running on my little macbook ok are Final Cut pro, Adobe after effects, Photoshop CS4.0. I mainly use it for Video Editing and touching up Photos/doing some graphic work but nothing to a professional level or that regular. Although I'm managing ok at the moment, the main reasons for wanting to upgrade is the larger screen and the fact that I am working with HD footage and maybe in the future change that hobby into a second profession. My other question also is: by buying just the base model, is there really a big jump between using my macbook+external screen, as it has the same ram/graphics card however processor is only 2.4ghz. i.e is it a case of buy an upgraded imac or stick to the mac. Many thanks for any advice you can give me !