I'm considering getting a Macbook. I can't decide between the base 13" or the base 15". The main things I'd be using it for would be internet, emails, music, etc. Typical day to day computing. I don't plan on gaming. I might fool around with imovie, and I don't do much photo editing, but what I do isn't really intensive editing. So would I be fine getting a base 13" or should I go for the 15" with the quad core processor? I'm planning on having it for a good number of years, so I want something that will last!