So I use my 2.0 SR WhiteBook for recording audio and I've hit a processing power wall so I've decided it's time for a new machine. I'll be getting a mac pro after Christmas but I need to be able to work on the go too... so, my question is this. I'm trying to decide between the 2.4 MacBook or go a full jump to the 2.53 MBP... if they offered a 2.53 MacBook, I'd be all over it. In the world of audio though, will the extra cache and bit of power really make that much of a difference? ... or will the 2.4 suffice?