Well after a day and a half it's becoming more natural, my left hand now reaches for the Spacepilot instead of the keyboard.I have seen the space pilot in use by someone using Inventor guys and it works a lot better then you would think. It looked clumsy and awkward to me as well at first glance.
Just a note I have tried to use my wacom in place of the mouse on many occasions and I still cannot use it. Even in photoshop just the other day I was trying to draw over a screen grab and mark regions and I just gave up and drew lines with the mouse. Just drawing a freaking arrow head at the end of a line is a 5 minute exercise for me on the wacom! lol
It does take some getting used to but on the plus side zooming in and out is far more accurate and the hotkeys are all placed around the main shuttle.
So far so good.
Here's a little more progress: