Thanks All, for the replies.

Gil Simon

I have my eye set on the Motorola MC68HC11F1 MCU. It has the serial, port that I need, but whats more it can be setup in bootstrap mode which allows me to send my own program, from my PC's RS232 port, to the MCU's on board RAM. From there I can then access the on board anolog to digital converter for taking various measments from an array of transducers.

This chip sounds very versitile, can anyone tell me of any pit falls I may experience using the 68HC11?