So, next year I'm off to poonivesity (see what I did there?), and have decided I don't want my desktop with me, especially seeing as I don't game all that much any more, and if I do game, its usually the occasional hour long session on something quite old, CS:S, HL2, Portal and the like, and a basic laptop can do that. That was originally one of the things that stopped me getting a mac, but now that steams on there, all is groovy. Any-who, at university I am going to be doing civil engineering, which is going to require a CAD package (AutoCAD/Cobalt I've been told) and a full adobe package, which work very well on a Mac, but will they run better on a Mac when compared with a PC? Also, is it worth going for a 15" over the 13" Macbook Pro? No matter which one I went with, I'd be hooking them up to my 24" Dell in my room, and with a proper mouse etc. Would having the 13" screen (1280 x 800) make doing CAD difficult due to the relatively low resolution and size, and would having a 15" (1440 x 900) be better off? On the same subject, would I notice the extra 0.5kg of the 15" compared with the 13" when carrying it around with me? I guess not, but hell, I've never had a laptop before. Other sides of the 13 vs. 15 debate is whether the its worth the extra £200 for the bigger screen and the i5 vs a C2D processor. These were the models I was comparing. So, thoughts?