I'm currently running Logic Pro on my G4 400MHz using a digi001 and planning to upgrade to a Mac book with a fireface 400, my concern is if the difference between Mac book Pro and Mac book would make a big difference when the pricing has quite a big gap. Is Mac book good enough for audio application if I want to run logic and some other plug-ins using a fireface 400? Would anyone be able to answer my question? Thank you! KIM