Planning on picking up a MacBook Pro this weekend. I have an appointment at the Apple store on Saturday evening. Interface-wise, I plan on starting with an MBox 2 Pro, but would like some upward mobility to move on to interfaces with more I/O's and sorts (I would ultimately like to be able to record 4-6 simultaneous tracks to make it viable for use with drum kits). Of course, I'll move on to a Mac Pro once my setup reaches a certain point, but what, of the current selection, should I be looking for processor-wise? Do I need to go i7 for this or will the 2.53GHz i5 do the trick? I will use it for basic video editing from time to time, but nothing too fancy, so that's not a big concern of mine. I'm leaning towards the 15" right now, just not sure of how to equip it. Also don't know if this is taboo in here or not; if it is, please inform me. I'm kicking around the idea of picking up a nicely equipped PC notebook and throwing OSX on it. Is this asking for compatibility issues, considering my intended use? It's just seems like I might get a heck of a lot more POW! for my buck that way. Thoughts?