Thanks, guys! I've found a few sites on the web- gfcf.com is one, and it has a lot of branching links. But I'd be happy to get more, so please PM them to me if you have time!
Thanks for the encouragement, I really appreciate it. The book on enzymes I ordered from Amazon should arrive today-we're very eager to get started! If Dagmar is on the spectrum, we've been assured time and time again that she is incredibly high-functioning-and she is-this makes us even more hopeful. If even a slight improvement is seen in her, it might make the difference between "quirky" and "wierd" if you know what I mean.