There was a great program on the Smithsonian Channel recently about what happened to the 617 squadron after the dam buster raid. Having put together a squadron capable of precision bombing, the RAF naturally wanted to keep using it's ability. Very interesting stuff that I'd not heard of before (not all successful raids though, and losses continued to be heavy).
I don't recall exactly what the program was called - although I saved the program on my DVR, I'm not currently at home to check it.