I have the same problem. I live in an extreemly dry climate so I have a rough time maintaining humidity. I found this in the DIY section: http://www.ball-pythons.net/modules....warticle&id=53
I plan on building one this weekend to help with my humidity problem. As for the temperature, do you have your heat source plugged into a thermostat or dimmer? that will allow you to adjust the level of heat.