Wow, this was easier than I thought it would be. I have a Wii at home, so I grabbed one of our wiimotes and brought it to work. I stopped by a hardware store and picked up a pen flashlight for $2.99. My computer has bluetooth built in. If you don’t have a computer with it built in you will need to purchase a bluetooth adapter.

I connected the wiimote using the free download WiimoteWhiteboard for Macs (site has PC version as well). *I did figure out that I have to turn my bluetooth off and back on every time I connect.
Once it was connected I set the wiimote on the top shelf of my projector cart pointing to my non-interactive whiteboard (any flat surface can work).
I turned my projector on.
WiimoteWhiteboard includes calibration. I touched the four circles to calibrate.
That’s it! I just have to make sure that my wiimote is pointing to my screen area and my hand or my body is not blocking that signal.
Here is a link to a pdf file that helped me get started. It has great images to help you visualize the steps.
http://arch.eece.maine.edu/ideas/images/6/67/Whiteboard.pdf
At this point my district is doing some checking into this as a supported technology. No decisions have been made at this point.