I just got around to trying the high speed air body saw I got at Harbor Freight a few months ago. I used it to cut the plywood floor in the KR where the brackets for the grove gear go through since I didn't have anything else that would get in there to cut it. I was amazed at how good it works and played with it on some sheet metal, spruce, and fiberglass also. I am going to use it a lot more where I would have used other tools in the past now. Everyone needs one of these. The body shop guys have been keeping this tool a secret for too long.
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=113 Brian Kraut Engineering Alternatives, Inc. www.engalt.com