I did that to a PowerBook I had a while back, the whole side where the ports were popped out and the lid had a serious dent. It worked flawlessly and was only one month old, but I knew I was screwed if anything went wrong with it in the future because when it came to warranty Apple would just tell me I must have caused the problem when I did what ever caused the dent so it wouldn't be covered.
I had two choices:- pay $1300 for a new lower case (and goodness knows how much the lid would cost) or sell it. I sold it.