Hi,
 I made the problem go away but I would like the wise people to
comment.  The 2004 Civic I have would start vibrating when I pushed the
brake pedal down.

My wife took it to Honda Service and they resurfaced the rotors and the
problem went away for about a month.  It then came back in full force
and it was very dangerous to drive.

So I took it to my friendly service station and they resurfaced it but
were very unsure about the exact cause.  Guess what ... the problem
came back in a month again.  So I took it back to them and they said
that the rotors were warped again but advised against resurfacing since
it did not solve any problems.  They suggested that I either replace
the rotors and the pads or complain to Honda.

after being given the run around by Honda, I decided to change the
rotors and the pad myself.  I have done it before.  I used Kragen's
generic version and instead of ceramic pads, I used semi-metallic.  I
also noticed that the old rotors very pitted on the outside surface and
there seemed to be hairline cracks in the old pads.

Also, I noticed that only one screw was being used to hold the rotor in
place instead of, what I would think, two.  The other cars I had worked
on did not use any screws as the pads held the rotors in place.

That was about a week ago.  I am waiting to see what happens next.  Any
thoughts, advice, etc. would be appreciated.