Decisions have been made. Avoiding the complexity of servo steering and electronic speed control drive wheels seems like a good decision. I am not comfortable with my very dated electronics (read that voltage control, FET's, current surge capacitors) memories.

I will make a fritzl-like wall hugger
(http://letsmakerobots.com/node/928)
that can also be radio controlled. I will use my toy level car much like fritsl's. I have a HiTec Ranger III RC system complete with a HiTec HFS-03MM three channel receiver.

I have Microchip's DM164120-2, a small demo board with a PIC16F887 device on board and a small surface mount prototype area. I am learning how to code it with PICbasic Pro.

All I need to finish are the SRF05 proximity sensors.

Wish me luck. I will keep you posted.

Ken