I was able to complete the TOR proxy that I wanted to put together. I first followed the instructions at http://learn.adafruit.com/setting-up-a-raspberry-pi-as-a-wifi-access-point/ to get one of the RPis to work as an access point. I then started following the instructions at http://learn.adafruit.com/onion-pi to get the TOR proxy working. I reset my managed switch to have a port open to the outside (my
psuedo-DMZ), plugged in the RPi, and restarted it. I was able to check
it out using http://www.ipchicken.com and found that my ip was coming from the output of a TOR relay. Success ...
I have also opened an identical port to the outside in the third switch that I have in the house. In that way, I am able to move the TOR proxy from one part of the house to the other.