I am looking at purchasing one of these and have a few questions. This will be my first Mac although I do use them occasionally at work. My reason for the purchase is to have something portable to surf the net with, check email, VERY light photo editing, occasional word processing. I have a 17" HP elitebook for work that if I need to do a lot of work at home on I would use. My initial thought is that the 13" will suit my needs, however, the only thing I am concerned about is the resolution (going look at them today). I don't think the integreated graphics will be a problem at all for what I am looking to do with it ? Why is the 7200 rpm drive not an option on the 13" ? Can you put one in aftermarket ? Otherwise I was just considering going with the 128GB SSD from Apple. I am not completely against the 15" but have a hard time justifying the additional cost for what I will be using it for. Do all 15" models come with dedicated graphics card or do the low end also have the integrated, this wasn't real clear on the apple website. If I purchase apple care, how does changing the hard drive or memory myself affect the warranty ?