I just got an MBPr 13 and I was wondering if my temperatures are fine. The palm rests seem a little warm, I'm really not doing anything except browsing and downloading some files. I'm using a "case" for my mac, those clear ones that snap on. It does seem to have vents but I'm worried it might be causing my Mac to run hotter. In general is it okay to have these cases? I've attached a screenshot of my temperatures, I would really appreciate it if someone could tell me if these are normal, high, really high...what have you. Thank you.