I'm a college student without a working knowledge of how to analyze computer specs. Basically, I tend to multitask a lot on the Internet (bad habit, but probably won't be successfully breaking it anytime soon). I have approx. 8gb of music and a small, but growing cache of Word documents, including several sheets of numerical data on Excel. It should be able to handle Skype easily and if the built-in camera is good, all the better. My main priority is that my next laptop last me at least 5 years (hopefully, 7). Obviously, my needs are pretty basic-- I just want a reliable 13" laptop with minimal freezing. So, my questions are: - Will I notice a difference in performance between the new MBP and the new MBA? - Given the education discount and $100 gift card, would it be better for me to purchase from Apple directly or from Amazon? (Can the gift card be sold?) - The MBA's lack of an optical drive is a ding for me, and I don't generally lug around my laptop. Are there any other key differences between the MBP and MBA, in terms of functioning, that I should consider before making my final decision? - Is there a difference in the durability of the chassis of the MBP and MBA? Thanks for reading my slew of questions-- I'd appreciate any helpful input!