I really like plastic tubs/bins for terrestrial frogs and toads, actually. Especially for species that require high humidity. You can just cut a hole around half the size of the top in the bin top and then hot glue some screen across. I find a bin set up that way keeps humidity pretty well. There's actually a guide on here about making sterilite bin terreriums, I can dig it up later and link it if you're interested, but it's probably unnecessary.
Edit:
http://www.frogforum.net/showthread....arium-Vivarium