How much to fix car door? Picture is included?

[Liliane]

I was in a car accident recently and my front passenger door is completely dented. How much would it cost to fix this? I am paying for it out of pocket, I also live in Buffalo, NY if it helps to know. Someone said I would need a new door, but I dont think this is the case since I can open and close it without problem.

http://tinypic.com/r/347xiyw/5
http://tinypic.com/r/2isioua/5
http://tinypic.com/r/acu547/5