I just picked up a MaxiTrip™ TP100 Scan Tool.. Slightly less expensive alternative to a ScanGauge. I got it on Amazon.com for $80 shipped.
     ● Works with all 1996 and later OBDII compliant vehicles
     ● Reads & clears trouble codes
     ● Easily determines the cause of the “Check Engine Light ( MIL)”
     ● Turns off Check Engine Light (MIL), and resets monitors
     ● Views freeze frame data
     ● Displays monitor and I/M readiness status(emissions)
     ● Retrieves vehicle information (VIN, CIN and CVN)