round here its like $75 for the first ding, $20-30 for every after. what i did was around the hail storm there were all these "boomers" in town, so you could work out really good cash deals with them. got all the nasty dents worked out of my car for about $80.
i just did the top of my fender last week with an allen wrench and my thumb. like i said, the key is patience.