To shorten the time until the first videos from koxxdays are released, watch this from the MONTY day. http://tv.isg.si/site/?q=filebrowser/BSXL "monty-day2006.wmv"
You don't have to remove the snap ring. It just holds the bearing in place. After you have unsrewed the lockring, just pull off the outer ring (to the side where the lockring is). The you can clean pawls, springs and the ratchet.