http://www.chiefdelphi.com/media/photos/25703
We bought this Interactor 5 bay charger in 2006. Interactor even supplied the unit with the Anderson Power Pole connectors installed. This unit is compact and requires only one power outlet. Don't quote me on this, but at the time the entire charger was cheaper than 5 individual Interactor brand chargers.
We built a wheeled cart around the unit as well. I'll have to get a picture to post.