I'm about to purchase a 17" Powerbook and I'm wondering: would the speakers be any better than the 15"? It has wider speaker gratings, so... are there bigger speakers behind there? Also, you don't think I'm crazy for buying a Powerbook now, do you? Since it'll be a few years before the Intels anyway. I have an iBook G4 currently, but it's not cutting it with the low resolution and definitely not with my FCP. Even so, I'm still hesitant.