I am contemplating of changing my PC to MAC but I do not know which MAC to buy. The primary use of my computer are for internet browsing, email, watching movies and as an aid in my classes as a professor. I need some advice on which MAC to buy. Would it be enough if I just settle for the Macbook, or should I get a MBA that is lighter or should I get the powerful Macbook Pro. I have heard that Apple will be launching a new Macbook. Do you think I should wait for a couple of months for the new Macbook? When do you think would it be released? I would really need your advice in this matter.