Yes, one of these threads. So I'm waiting for arrandale, and just a quick question - 13" or 15"? Using 13" blackbook right now, and it's portable, but i can't fit much on the screen, and pro tools/logic (main use) is pretty slow on it. If I get a 15", how will the weight compare, and will the extra screen size be worth it? This is also for college, btw. Thanks.