RE: New guy here, this is cool!
I would get the CP Pro with a few conditions:
1) Remember that the wind has a very big effect on these little helis, so I would make sure you have someplace other than your yard to practice in. Once you learn the ropes, you'll be able to handle a bit of wind.
2) As part of your spare parts kit (and you will want a spare parts kit- main shafts, pitch links, feathering shaft, skids, tail booms, etc...), I would buy the standard CP blade grips. Use those until you get the hang of it, then put the Bell/Hiller grips back on. The BCPP Bell/Hiller system may be a bit too responsive for a beginner whereas the BCP gave a very little bit of lag time. That's my personal recommendation, and the argument goes both ways (some people don't like the control lag and learn better with the Bell/Hiller).
It's cheaper to buy the BCPP and downgrade it for training than it is to buy the BCP and upgrade it for performance.
Good luck.
Chad