This is probably old news, but in case you haven't seen the AIA's guide to Integrated Project Delivery... Refer to the following link.
You can also get more via a podcast (also provided by the AIA). The podcast gives you a 1/2 hour overview of the guide.
If you're an iTunes fan, you can also find all the AIA podcast located there. Just search AIA under Podcasts, subscribe and you're on your way!
From this link, you can also find the AIA's contract documents with respect to IPD.