Ok guys so let me first off by saying this is my first macbook ever, so I need some of your guys expertise. So right now my dilemma is wither to get a high end 13 inch macbook pro w/ retina display (the $2000 laptop) or get the high end 13 inch macbook air that is upgraded to have an i7 and 8 GB ram (ends up being $1700). So the difference between these two laptop is 300 dollars. So my use for the laptop is as follows, I am a current college student who does design work for a company. I mainly design parts on a CAD program called Solidworks. I know for a fact the macbook air can run it because while I was walking one day, I saw a fellow classmate running it on the laptop using bootcamp and he said it was just the high end model (I'm assuming he didn't do any upgrades). Also I would be using the computer for the MS Office programs and web browsing. The reason I decided to purchase a macbook now is because after getting my iPhone I fell in love with apple products and now have an iPad because of that reason. So with all that being said what from your own personal opinions and experiences is the better computer for me? Thanks for all the help and info guys, I really appreciate it.