Rear Ended!!!

[Brian]

My Laguna was just rear ended!!!! The bumber cover is pushed in a little, the trunk won't open, and the rear of the trunk is pushed in a fraction of an inch relative to the panel to the left of it that it is supposed to be flush with. Most disturbingly, there's now a big, diagonal, shallow crease in the right rear quarterpanel just behind the pasenger door and in front of the rear wheel well!

I didn't have my cell phone w/me and neither did the lady who hit me. We exchanged names, addresses, numbers, and insurance info. I told the lady who hit me that we can settle this w/o involving the insurance companies if they want too. She waved down her husband, a police officer, on his way home from work, and I gave him the same offer. His deducible is $400, and he said he'll wait to see if the estimate is more or less than that before he decides to turn it in. (As if it the repair could be anywhere near as low as that!)

I'm going to have to get an estimate soon. I can take it to the place that I had paint my trunk, etc before, but they weren't cheap, and I don't want these people to pay more than they have to. What can I expect this to cost? What will be involved in completely fixing the crease? Where can I find good replacement parts that might be cheaper than what a body shop can get (besides checking Car-Parts.com)?