We would like to get my daughter started with keyboarding lessons. I've heard this is very 'do-able' on our Mac (slot loading imac OSX). What suggestions do you have for a keyboard with compatible hook ups for interphase (interphase suggestions too) with our computer. Software?, Etc. . .

This is my opinion. You are probably better off buying her one of those Casio Keyboards with the training feature in it. They probably won't cost you more than $300. After all, setting up such an environment with your Mac is not the easiest thing to do and I think your daughter will enjoy the ease of all-in-one keyboards.

But that's my take based on my experience alone.

btw when she's on the Casio you can steal the mac

or when she's on the mac you steal the Casio

more seriously, I think Ryosode is quite right, first learn an instrument easily set up. Then you can complicate things, if you want to…