So the question is: Refurbished 15" MacBook Pro 2.53GHz Intel Core 2 Duo OR New 13" 2.4GHz Macbook Pro I would be using the computer for education/college purposes. I'm used to a 15" screen and I think the 13" may be too small for me. What would you guys choose? I'm leaning towards the 15" right now, but I'm worried it won't be portable. I'm not going to be using it in coffee shops, etc. Just in my dorm on a table or in my lap on the bed, and especially in classroom on the desks. It's just an extra pound heavier and with a ton of textbooks, would the weight even matter? The main issues that I'm worried of right now are: 1.) 9400M vs 320M --- will I regret going for the 9400M in the next couple of years? 2.) Portability 3.) Battery efficiency Thanks.