Hi Roger, welcome to MoI and to the forum out of the shadows! :)

I'm glad that you're having fun with MoI already - since you are already familiar with NURBS modeling with Rhino you're probably going to feel pretty comfortable with stuff right away.

Also one note - you can use Copy and Paste to move objects back and forth between MoI and Rhino quickly if you need to bounce anything around between the 2.

- Michael