Oh right, I remember reading about sphagnum moss. I happen to have a ton of Java Moss from my aquariums haha.. not sure if that would work well too.
I did check out PVC enclosures from Animal Plastics, but I took one look at the price and decided against it, for now. :s I'm not the most wealthy college student at the moment + the cost of a pretty BP. From the sounds of it now though, a tub is more preferable if only because of the heat retaining compared to glass tank?