Idling Problem

I have a 97 Cavalier with the 2.2L. It doesn't idle right, sometimes I have trouble starting the car as well... driving around it seemed to be ok but when I stop (either with brakes or putting into park) it sounds like missfiring... where do I start? spark plugs, spark plug wire, ignition coil maybe??? :banghead:

Install new plugs and use a DVOM meter and ohm all the wires it should be around 1/2 scale. If no reading or only when wiggling the wire replace with new wires.

Thanks!