First thing, Welcome to Bonneville Club :P
Don't worry about already having a problem, that is how many people find us
So, as far as the miss, I would suggest with a full tune up, or at least like you said, plugs and wires. Don't go and replace the coil packs right away if that doesn't fix it. They can be tested using this Techinfo article Ignition coil troubleshooting
You don't want to waste money on coils if they are already good.
Do the tune up and see what you have after that
also, what trim level is your car? Please enter your year and trim level into your signature so that we can help you better