Beekeeping: Bees Swarmed Today

The bees decided to swarm today. I nearly walked into a huge ball of bees hanging from the arbor that supports the hammock. Usually bees hang out to congregate near the hive they are leaving before flying off to a new hive site, but I get the feeling they were planning to stay, as they had already begun to lay down wax on the wood for new comb. It's amazing how fast they work. I was surprised also by the number of bees in the swarm. I dropped the box I was capturing them in because it got to be so much heavier than I expected, and I got stung several times on the ankle in response--the first time I've ever been stung handling a swarm. My ankle is swollen and itchy already. Still, I seem to have got the queen in the box. I have no room for a second hive, so I aim to sell this swarm on Craig's List. Any takers?