Here is a nice terrain set from Pegasus Hobbies. Its the Platformer Small Set. The price was right at $15. The parts came on 5 sprues, 4 of them having floor plates. The plastic used feels a little bit cheap as I broke a few small part due to my lack of patience. Cleaning of the parts and assembly took around four hours and took standard hobby cement well. Below is what the unpainted version looks like.