Maybe you can hit the 3d modelling forum w/ your questions, jjroland.
It's for general modelling techniques, not app. specific; but I know that there are modellers there that are familiar with Carrara. I don't think anyone bites...well maybe a couple people.
There's the good chance, of course, that you will get referred back to this forum. :laugh:

Friends don't let friends use booleans.