I think a few people missed the part where he wants a naturalistic cage setup. That makes racks out of the question.

I've got 4 Animal Plastics T10 cages. One has our redtail boa in it, the rest house bloods. I've got no complaints about them, and I haven't had the leaking problem that Denial mentioned. I'm going to be ordering up some Boaphile cages in the near future, the main reason being that he offers them in a shorter height than AP does. The T10's are 15" tall, where as Boaphile offers them at 11.5" tall. Doesn't sound like much of a difference, but that will get you five Boaphile cages in a stack the same height as four T10's.