Here are a few Resources.
This is not nearly complete but its a good place to put some of this stuff. I will keep adding to it.
The Raspberian Distribution that we are using.
We are using a modified version of raspberrian that has pure data running on it. We added the arduino software and a few other pieces of software to it. Once we figure out how to neatly package it we will post a link to the final product. In the mean time the source for the distro and some rudimentary instructions for using it are at http://pd-la.info/pdpi/
Connecting to your Pi.
I need to write up the specific directions for our environment and both platforms but the links below are what I referenced
Gail, I think it is posted at the very bottom of the page as part of the post from class Day 2!