I've already ordered a MPB, but it has not been shipped yet. It's the one with 2.53Ghz i5 processor. I've upgraded the harddrive to 7200rpm and the screen to a higher resolution as well. It's around 2672US dollars in my country. To me, that is a huge amount of money, but then i got thinking if it would be foolish if i didn't just spent the extra 270US dollars for the upgraded 15 inch model with i7 CPU and twice as big graphics? That would mean the total price is around 2905US dollars. But would that be completely insane? Or is it worth getting the i7 CPU and twice as big graphics? Or am i going to be fine with what i've already ordered?