We can get any type of heating here, its only price that varies. Cheapest option would be a UTH with a Heat Lamp.

Our average summer temps where I stay are 27 to 30 but up to 32 some times! Humidity is in the 50 to 60% range.

Its only in winter that temps drop, but nothing dramatic. In all likelihood a straight CHE will be good enough. I'm thinking I should set the cage up and monitor the temps for a while, and add or take away as needed.

Thanks for all the responses guys!