I did take it to the dealer once. I bought the car new last october, it sat on the lot for almost 2 years! (so I got a great deal) Of course it did not rattle when I brought it in, so they were of no help. I decided it was easier to deal with it myself, than some hack who really does not care about it. My buddy is a 20+ year dealer mechanic, and says that they despise trying to diagnose "rattles".
Thanks for the tips.