Thanks for your suggestions. I was thinking of replacing 1st three coils so I don't mix them up later but I will take your advise and replace the one's I am experiencing misfires on and just write down which I have replaced.

As I mentioned before, my engine runs great, it's just the problem when the car starts. Once it starts, I don't see any problems (except that I think it is using too much gas in the city driving, although I am not sure anymore. I did have another post about that. Since I drive slowly in the city, I would think I would get better mileage than 11 MPG in the city. I do get 21 MPG on the highway driving at 75-85 mph which is ok.)

I will let you know if the problem goes away once I replace the coils.