Hi, In a few days, I will be ordering an iMac 24", in addition to a 15" MBP with the student discount. I read in another thread, that the 7200RPM upgrade actually has slower performance than the stock 5400RPM drive in the lowest end MBP. The reason I ask this is because I don't want to spend the extra if I won't notice, but also without this upgrade, I can get both of what I need in the store, as opposed to having to wait for shipping. So, does anyone know what's the deal? Permalink to post stating this Thanks.