I use flexwatt (it is a type of UTH). It is cheaper than alot of other brand UTHs and works better in my opinion. A UTH heats from the bottom. This is beneficial because your bp is at the bottom of the enclosure and because heat rises you get better temps. Lamps tend to dry out the air. I have used lamps alone, uth alone, and lamps and uth together. They all work fine. I have heard that human heating pads are somewhat unreliable, and why waste you money when flexwatt costs the same. I think what you are using for heating really depends on what type of enclosure you are heating. All heating elements can work just fine (EXCEPT heat rocks) if they are regulated properly wiith a thermostat. That is the only way to ensure that there is a constant temperature in the enclosure.

Hope that helps some