Hank, it sounds like something similiar to what I have been working on as well with regards to working with an ADC in value. I've been using a serial connection to my 16F877/16F877A. Just like you at first I had a little LED turn on with my ADC value coming in from a pressure transducer. I set it up to turn on portc.0 at 1 psi then portc.1 at 3 psi etc... Like you said that just confirmed it worked. The real work was in taking the value and converting them to a PSI value. I got some great help with that calculation and ported my actual PSI to the serial port so I could see the actual value. I had a tone of SEROUT2 commands dumping everything to a hypertermial session.

I have the schematic for the connection with the max232 rs232 chip if you need it.

David