ladybug
You can find a whole lot of incredible info about kefir at Dom's kefir site - unfortunately I can't tolerate dairy either and have to turn to water-kefir. I love the "regular" kefir taste - well, just another thing I can't eat... :)
Do you have kefir grains already? If not, look at this site:
http://66.46.11.99/clarkson/Show/Clarkson/kefir/default.asp
I've got my grains from there, cost me 5 bucks and the grains are wonderful. :)