Okay, so I've already ruled out the MBA because while the size is great, it simply isn't powerful enough. So now, do I go with the 15' MBP or the 17'. I have heard mixed things though about how much college students actually take their computers to class. Next year I will be a starting freshman studying international relations and I cannot imagine that I will need to bring my computer with me too often. If I get the 15 I will need an external monitor, but if I get the 17 I will not; and could save room on my desk-heck, I wouldn't even need to buy an external keyboard with the 17. Thoughts? Am I an idiot to even consider the 17' for college?