Dent on panel under passenger door.

What is your question?

In a parking lot I got to close to a curb and dented the panel under the passenger door. I was not driving fast but began to turn to early and the curb scraped the panel under the passenger door ( do not talk on cell phones while driving). How much will this repair cost? Is the dealership the best place to take it or are there other places? Will this affect the car?