I don't know what kind of fish you have but 5 gallon rubber-maid containers (minus the lids) work great! They give the fish room but are still move-able when they have water in them (fill about 2/3 way full). Don't put too many fish in one container because when they are stressed they produce a lot of ammonia and with too many fish the levels will sky-rocket too quickly. The stress coat stuff will be good to add.
You can buy battery operated air-pumps with bubble stones at Wal-Mart in the fishing supplies section. They are really cheap (around 8 dollars I think) and they work great for moving the fish. Just tape the airline tubing to the side of the containers so that it doesn't move, and then if you want too you can attach the lids over the tubing and the fish will still get oxygen the whole time.
Thats all I can think of right now but if I think of anything else I'll let you know.