I originally had a miss only at 3000 rpms, so I made a to do list of plugs, wires, cap, rotor, gas cleaner, clean the throttle body, clean battery terminals, o2 sensors, and coil. I did them in order of least expensive to most, and nothing really helped until the upstream o2 sensor, which when i disconnected it, the miss went away. It took me a while to go ahead and replace it, and in the interim it developed the bump miss. So yesterday I took the plugs, wires, cap and rotor back apart and made sure the gaps were perfect and that everything was nice n tight. Still no change, so the laaaaast thing i did was yesterday after i posted; replaced the coil, and voila! My tj runs as good as new again, and my mpg are way up since basically the entire ignition system is new and/or clean! Ross thanks for your response, I have the champion copper plugs, and everything i did was done per the spec of the Jeep Forum members and they were all right on the money. Makes me proud to be a Jeep owner with this type of community behind me. I've never really worked on a vehicle before, but did all this and a water pump flawlessly with the diagrams and pics here. Thanks again and hope this helps somebody too!
ps- it's a 97