Hey, I'm a student studying civil engineering and I think I'm going to need a new laptop soon as mine seems to be slowly dying! Which do you think would be better the retina macbook pro or the 13" macbook air. I use software such as autoCAD and matlab. I also edit 1080p videos from time to time. I need a lot of hard drive space too as I have a look of stuff on it! Any help would be great! Thanks.