I have the Auotxray techscan 7000. It's a pretty good unit and it does OBD1 and 2. It comes with the OBD1 cables for ford, gm, and chrysler. It will show live data for OBD1 and 2. I origanally got it because I had a '92 dakota and it worked great on that truck. It has a lot of nice features for domestic cars and trucks and you can buy upgrade cards for toyota, honda, and nissan. You can also buy an upgrade card for domestic ABS codes. I suggest you download the manual first to see if it's what you want. My only complaint is that they seem to be slow with the software updates, I've had mine for a little over a year now and they have yet to release an update(it only list cars up to 2006 for enhanced data).You can check it out at www.autoxray.com
. I bought mine from amazon and I thhink you can get it for about $250.