My is rMBP 15" is being delivered on may 28 2013 I am so excited!! It is my first macbook ( first apple product other than ipad 1 ofcourse) SO help me out Should I buy a sleeve or case for it. I carry it a lot and weight is not an issue but if I buy a case I want it to be as LIGHT as possible.I dont want it to cover my ports and speakers. My major concern is will my macbook get too heated if i use a case.(coming from Toshiba U405D which weighed 5 pounds and it was 13") So I am scared that the aluminium will get dented. So I need to buy a case or sleeve. Or should buy both. WHICH BRAND SHOULD I BUY? I prefer cheap and best as I already spent a lot of money on my rMBP 15" HELP ME!!!!!!!!