A Swarm Trap and a Trap Out are completely different operations. Kind of like fur trapping and nuisance trapping are different.
A Swarm Trap is a container placed with the hopes that a swarm will investigate your "trap" and move into it. A Trap Out is a process by which an existing bee colony is forced to leave its hive, house, tree, old car, or whatever the colony is residing in. It is not dissimilar to using a cone device for bats. A super, also called a hive body, is placed strategically to ensure the bees take up occupancy as they are evicted. Its not quite as simple as I have described and no two are ever alike, but the basics are the same.
I use my existing hive equipment, regular deep supers and deep nuc supers, in both trap outs and swarm traps. The key to the swarm traps is having them where they will be investigated and having some old comb and swarm lure to make them more attractive. I use my nucs in trap outs and remove the bees every day at first and then every couple days as the population drops off. I combine the "captured" bees with existing colonies that may be weak or keep piling them in a new nuc to create a new colony. If I am creating a new colony I will add a frame of eggs, with nurse bees, so they can make a new queen.
So I guess my answer to what are some good outlets is use what you already have, I haven't found a magic swarm trap. If you don't have any bee equipement, buy or borrow some regular supers. Oh yeah, visit
www.beesource.com for a wealth of info.