Done with photoshop - eye colour hasn't been tweeked - just placed in Black and white and recovered her natural eye colour and tone with history brush.
I finally picked up photoshop and have been trying to figure out how to use it, there is a lot of things that you can do. I think I figure out the selective color thing, this is my first attempt.
I just tried it for the first time (minutes ago, because of this thread ) and it's actually not too difficult. Take your shot and duplicate / promote it into a new layer. Turn that second layer into the black-n-white shot. Then just erase, on the black-n-white layer, what you wanted colored as the erased part will allow the colored part in the first layer to show thru the erased portion of the black-n-white. Try it, it's easy.