I just got this book:
Thats Hands On Rigid Heddle Weaving by Betty Linn Davenport. And what this means is that my loom lust is getting much stronger! I wish I were weaving RIGHT NOW!
I've only skimmed the book (I am at work, after all, and do have stuff to do - and I don't want to just devour it all at once) but it looks like a great starting point and just in skimming it I've already learned more.
The best way for this to happen is for someone to give me the loom as a gift, so the man can't complain - if I try to buy one myself, it could be a problem...