Reno, I am probably in the middle on the tools. I like to have the right tools for the job but I am not a tool magnet, requiring the latest and the greatest. That being said, I did look at the Flex cutter. That is a good looking tool, but it should be for $600.

(http://www.flexnorthamerica.com/docs/FLEX%202011%20Catalog.pdf)

I will get the carbide bit for the rotozip and probably a carbide hole saw. Hmmm....maybe upgrade to a battery rotozip.... I actually had the dewalt until it was stolen. I miss that thing.

Where do you get the magents? That is a good idea. I can't imagine there being any insulation in the walls. That would work well.