This iMac is considered the mid-range model in the 27-inch lineup, and it's a formidable work horse for productivity and even amateur video editors. If you're just looking for a fast computer that will age well over the years, this model will excel, but you could save a little on the base 27-inch model.
I have to mention that you can find newer specs and better prices on Windows machines, but if you want a Mac, you want a Mac.