This is a very informative youtube video that deals with splitting hives. It touches on other related items...some queen raising, nutrition, health inspections, etc.,. Peter Borst does a great job with his talk. It is an hour and a half long and I enjoyed the entire video.
Hive Splitting - Peter Borst (http://www.youtube.com/watch?v=NxDwz9M87Xw#ws)
Best wishes,
Ed