Please keep in mind due to my region, I might not be able to add any extra RAM or any custom stuff like this. Retina is not an option because I don't feel the need for it, and it will be way too expensive when the next pro launches. Where I live they charge way too much over normal prices. Nutshell? I'm stuck between the two above. Macbook air 2013 13 inch 4GB 128GB SSD or i7 Pro 8GB 750GB Ram Mid 2012 non retina. I'll be using it for engineering university. Which do you recommend and why? Can someone enlighten me or help? Cheers.