Suggest an inexpensive, basic DMX controller for LED light color mixing

I'm looking for a dirt-cheap and simple, hardware-based DMX controller for an American DJ LED PAR can. I want to be able to do fine color adjustments and shades instead of the bang-bang controls achieved on the unit's built-in DIP switches. It needs to be really inexpensive and not depend on a computer hookup. I'll bet one of you guys knows of something:-)

this place too
http://www.mcmelectronics.com/

Steve

Hey Mark
How did you make out? Did you get one of those controllers?

Steve

Check out the dmx control products created by Doug Fleenor.

DS