I bought the BR-3 (search for one of my previous threads) and I'm quite happy with it. However, I've stumbled across others that look equally promising.

 

http://www.scoobypedia.co.uk/index.php/Knowledge/DiagnosticsSoftwareSuppliers

I just bought an Actron OBD-II Pocket Scanner, model CP9125, for $78.00. Needed something in a hurry, and that was what the local parts store had. It did what it was supposed to do - read out the code(s) and let me reset them. I really wanted something a little more sophisticated but, like I said, needed something in a hurry. Was afraid to drive the car to an Auto Zone or someplace that would have read the codes out for free 'cause I am afraid the problem might be something that could damage the cat with prolonged driving.

We had one at Wyotech that plugged into a computer, worked pretty good but I can't remember the name of it, but the complete kit (OBDI + OBDII) was like $600 as opposed to $2500 for the Snap-On scanner