Most units in this area bridge Webelos into a troop in February.
National has some good stuff on-line, but sometimes it can be hard to find (ok, almost always it's hard to find!). There is a Webelos Transition page that gets specific as to what the pack, troop, unit commissioner, etc can do to help with a smooth transition. This might be helpful. It can be found here:
http://www.scouting.org/boyscouts/resources/18-086/index.html
This is a fun time for the Webelos, and you've received some good advice so far. Good luck, and enjoy visiting the troop(s) with the boys.
(This message has been edited by bbng)