Here you go. I find great deals on Amazon.com.
Zoo Med HygroTherm Humidity and Temperature Controller:Amazon:Pet Supplies

This is how I do a 10 gallon without a Hygrotherm.
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There is a UTH on the left side that you cannot see. The light is dead center and is a 50 watt 75% intense spot light by Exo Terra. The lamp is a 5.5" Fluker's clamp lamp with dimmer switch. Temp stays at 80° to 82°. Humidity will sometimes drop to 64%. This works well and contains Pariah my second largest female.