I will be attending college this fall and am looking for a laptop. Can you guys help me decide the best and cheapest way to buy one? I have a .edu email address that I can use. Isn't there also a promo for back to school that gives an additional discount? Also, are there going to be any refreshes any time soon? I don't want to buy a laptop that will become obsolete because of a newer model that comes out only shortly after I buy mine. I am planning on getting a rMBP. Any comments on this as well?