Down the road I would really suggest getting a plastic enclosure.

http://www.reptilebasics.com/
http://www.animalplastics.com/
http://www.boaphileplastics.com/
http://www.visionproducts.us/htm7/cages.html
http://www.showcasecages.com/

I am sure I am missing a few vendors. With a front opening plastic enclosure you get better insulation, keeping humidity is easier, they are front opening which makes them easier to clean and get at your snake. Many of them can be locked, giving you that piece of mind. I housed my BP in a 10 gallon and moved to a 3'x2' Showcase cage as soon as he out grew it. I cluttered up the cage with a baked piece of wood and some artificial vines.