Well the FSM is likely talking about the TECH 2 scanner that is most often used at dealers to scan any and all scannable parameters available.
It is unlikely you'll want to afford the $thousands$ you'd pay for a TECH 2, so you'll likely want to buy an aftermarket scanner. A good one will run you between $250-600, depending on what you are really wanting out of it, though you can often score one for less used on ebay.
As far as good brands:
others that I'm not too familiar with....
Mike: 1997 SE w/ 183K, aka White Horse
, Gutted Airbox w/K&N, drilled 180* t-stat, tint all around, clear corners w/SilverStars, "PONTIAC" light up tail, PEMs, NGK TR55s