That's totally cool man - sounds like Studio would be overkill for you. Still I would absolutely agree with you that Express is a frikin
bargain for the power to price ratio. Go for it!
For me MainStage was a big draw as I happen to be designing a guitar that will benefit from it immensely.
btw I've found the Apple Training Series books on Logic to be great if that kind of thing interests you. I usually just jump straight in myself, but lately I've found that the little workflow tips I've gotten from these books have been worthwhile.
I'm sure you'll enjoy Logic
