Make sure there are no disease problems.
Then do shook swarms to the strongest colonies and adding their frames of brood to the weaker colonies, separated by an excluder, remove these combs when all the brood has emerged, keep all the good combs, discard any old manky combs, this also gives the weaker colonies a good boost in bee numbers ready for them to be shook swarmed as well, and then their brood added to the next batch of bees to be shook swarmed, maybe more than one box of brood per colony on some.
The bees that have been shook swarmed can now be given a quick treatment to get rid of any phoretic mites, the last colonies which will be very strong can be given an A/S and the broodless part with the queen treated and the brood part left to raise a virgin queen, all the brood will of emerged before also treating, remove virgin and re-unite, add new mated queen or allow virgin to mate, or split into nucs, several options really, and plenty of good spare brood combs saved from destruction, plus all the brood.
There are a few little finer details that can be done like adding one frame of open brood to the A/S and sacrificing this instead of allowing a virgin to emerge or adding cells, etc, but i don't need to go into all of this.
Here is another old thread on shook swarms...bit of background static in this thread...
http://www.beekeepingforum.co.uk/showthread.php?t=16518