hello, I previously owned a first gen unibody MacBook Pro (15") from 2008. I used it for audio recording and some games etc. Looking to get a new Mac for recording but unsure if the new MacBook can handle it. My mixer is a FireWire 800 device, which I think I can purchase an adapter for. I track to an external drive and only record two tracks at once in garage band - nothing crazy. I have a powerful desktop that can do this but I don't feel like learning new software and have lots of old GarageBand projects I want to revive. Additionally I want to develop an iOS app or two. I was leaning towards MacBook Air because it has better processor but the screen is terrible and 4 gigs of RAM does not cut it for me. OSX seems to have gotten much more system intensive since snow leopard, the last version I used. Does it look like the new MacBook will be powerful enough for my needs? Should I save some bucks and get a 13" air? Thanks for the advice!