Thanks for those links. i dug around alittle more on tucows.com and found this site:
http://www.auterraweb.com/scantoolsoftware.html
Download it at the bottom of this page:
http://www.auterraweb.com/downloads.html
The DTC program is free, and it works on the old Palm pilots, too. You can pick up a PalmIII on ebay for under $20, and the OBD/serial cable is about another $20-ish on ebay. So for about $40 to $50 you can have a killer scan tool that does some live diagnostic stuff.
I'm onboard if I can find my wife's old palm pilot in the home office.