Just out of interest, is the dent on bend near the window or on a flat area of paneling?
I had a dent just above my rear wheel arch in my old Civic Type R and used what can only be described as the best tool a plumber could have, a Toilet Plunger!
It pulled the dent right out with no disturbance to the paint either, well except for a ring mark from the plunger. This was removed with a quick wash and polish.
Oh just to point out, i'm not a plumber [:$]
Im in I.T. []