I am buying in the UK and previously had a Mac laptop at one point many years ago - it worked great for basic movie editing. I am looking to get a desktop computer to replace my laptop (as I now have an iPad for out and about) and there is potential I will get back into light video editing in my new youth work job, and so I'm thinking of getting an iMac. Looking around at second hand options (since my budget is tight), there are a number of 2011 iMac's available, with a range of specs. I've found one with a quad core i7, 16GB, 27", 1TB HD. But I am needing some advice on whether a 2011 version is going to be bad decision or not. Am I going to have to replace this in a few years? I suspect it will be powerful enough for what I want to do (unless you think otherwise) - the videos would be 5 minutes long max.