Just looking for some advises please. I have a Rev B 1.6 120HD Macbook air for over 17 months now, which I still love and enjoy using very much and here is my story. I've recently started shooting and processing RAW files with Aperture 3 and Nikon NX2 and find it a little slow on my air. Mind you I havent reformatted my hard drive once :S during my ownership. I am debating whether I should upgrade the hard drive to a runcore ssd or to sell the air and get a secondhand 17 macbook pro (last Gen) What do you guys think?