Thanks everybody for the tips and help! I actually went ahead and got the next size up. I figure I can control it with the thermostat and its still only about one third the of the floor space. Hopefully I won't need the CHE but, if I do, I have it. It's just going to be a pain with the humidity levels. I also have two tarantulas and they require the same levels of humidity as a ball but, they don't require the heat levels a ball does so I guess I'll have to see how bad it gets. Is the screen wrapping the best suggested method of raising the humidity? I also know about using moss? how many use this? What other options do any of you use or suggest. I'm open to any. I figured I would just be wrapping it but, if there's a better method, I'm all ears!