I'm starting grad school in a month and I'm shopping for a new MacBook Pro that can last 3 years of graduate school. I'm considering three options (student discounts included): 13" 2.26GHz for $1099, 13" 2.53GHz for $1399, 15" 2.66GHz for $1849. I'm considering the 13" primarily because of its small size, light weight and low price. I'm also considering the 15" because of its larger screen and dedicated graphics. This is why I'm on the fence: I know that I'll be toting my MacBook Pro across campus to studio quite a bit, ranging anywhere from once/twice a week during slow-times to everyday when gearing up for presentations, so weight is an issue for me. I did this for 2 years using my MacBook with no complaints. Would a 15" Pro be an issue? On the other hand, dedicated graphics would come in handy for those large Revit models. And so would a bigger screen for design work on the go. But screen size isn't a huge issue for me. I'm currently using a 13" BlackBook. Before that I used a 12" PowerBook G4. But I also have a 22" external monitor for docking at home. So what do you guys think? Do you see the need for a 9600m or will the 9400m suffice for my purposes? Beyond the typical web surfing and paper writing, I'll probably use Photoshop, AutoCad & Revit (on Bootcamp/Windows 7) very often. BTW I'm not a big gamer. I may play the Sims or Spore from time to time but that's about it. So...any thoughts?