Hello all. I'm on my way to buying a Mac, but can't decide between the PowerBook and the iBook (12" and 14" respectively). The cash is not quite an issue, it's more the pros and cons of each. I'd like to buy one and not have to worry in two years (and then some) that the mac won't handle the next version of OS X, and other such things. Is buying third party RAM a good idea, or is Crucial.com enough? That kind of stuff. My purchase will be next week, so thanks in advance! FB. Edit: I should mention that I'll be using it as an undergrad. Email, downloading, iTunes, iPod, carrying around, etc..