Make Your Own HiTechnic Style Radio Control?

Has anyone come up with a radio control transmitter and receiver similar in
style and use as the discontinued HiTechnic products? I had planned to
purchase some HiTechnic parts for my models, but as they have been
dicontinued, I have no idea what to use instead or what to make that will
work. I have considered taking the steering box and everything else (wires,
etc.) from a radio controlled car, and connecting a Lego 9v motor (or a
couple motors), or even just converting the RC motor to drive Lego gears.
Essentially, I will make a custom radio controlled car out of Lego. Does
anyone else have ideas, plans, or even radio transmitters and recievers that
work with Lego motors?

MM
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Did you check the web site first?: http://www.crynwr.com/lego-robotics