Hello people, Just bought the new 13" Macbook Pro, which i am loving! My first mac! I bought the 2.26 model with the intention of upgrading the ram and hd myself and saving some money. Anyway i was looking at putting a 320gb 7200rpm drive in, but the guy at the store said apple dont recommend putting 7200rpm drives in the 13" models because it can cause them to overheat and should stick to 5400rpm. So should i stick to 5400 or will 7200 be fine? Also any recommendations on a drive? I was looking at ST9320421AS Thanks!