hello everyone I study business and am planning to buy a macbook for my university work. My requirements would MSOFFICE, SAFARI, SKYPE, WEB BROWSING,WATCHING MOVIES,DROPBOX, BASIC PHOTOSHOP and similar simple needs, currently two models fit in my budget : A) 13" MBA 1.3/8gb ram/256gb ssd. B) 13" rMBP 8gb/128gb ssd I had made up my mind for MBA but when i went to store and checked the retina macbook pro, i was kind of impressed by it. But due to tight funds, i would be able to buy just 128gb of hard disk space in the pro, if i go for it. Is losing 128gb space over the pro is worth it? Someone told me about the sd cards that just fit in the slot and doesnot hang out. Are those fast enough in speeds and should i go that way? The 128gb will be less in the sense that i am going to use the machine for few years. Also, i will be taking the macbook with me in the university. So the weight and size difference between MBA and rMBP will be a big issue? I will be ok with the 9 hour battery life of rMBP. I love the sleek design of MBA but i am also impressed with the display of rMBP. Any suggestions will be greatly appreciated. I am planning to keep my machine for 3-4 years (not more than 4 yrs though). My requirements won't change in the future and i would be using these kinds of apps only in the machine. Its going to be my main machine.