I have two AP T8 cages - with sliding glass doors and dividers for each - I currently have two Ball Pythons in one and two cornsnakes in the other.
I can not speak highly enough of the quality of Animal Plastics. They are super easy to put together and the fit is impeccable. Definitely in a league above ready-to-assemble furniture you may be use to (like Ikea or Target).
I am using UTH on a thermostat along with surface mount halogen lighting inside the cage. The halogen lighting is on timers, and is installed right above basking areas.