Hey there.
Now, what you want to do is ask around your area, see if anyone knows a good body shop. Preferably a little privately owned place, that're usually in the industrial section of town. The longer it's been there the better.
The trick is that when you go there, you say the three magic word: "I'll pay cash."
I had a b!tch in a Mercedes put a nice dent in my passanger door to the point where it wouldn't even open all the way. $650 later, dent's gone and the hood and a few side panels of my car have a fresh coat of paint.
From the damage you're describing, if it's just a small dent that can be knocked out (and you don't mind the slight budlge that'd make) you shouldn't be charged more than $100, tops. And even that's excessive. Anyway, best of luck to ya!
-- Jack Kain