jay, try this site for the kefir, best instructions ive seen, and also has some good recipies for non dairy drinks made with kefir. the grape juice one is lovely, and a lot more paleo :-)
http://users.chariot.net.au/%7Edna/Makekefir.htmlhttp://users.chariot.net.au/%7Edna/Makekefir.html
link is home and work safe. nasty color scheme though..