I am right handed, but my left eye is much more dominant, and I have to use it for photography.
In turn, I also rotate my camera CW to do vertical shots, so that the camera is hanging off the left side of my face, with my left eye in the viewfinder.
Not sure how a vertical grip will feel with my left eye in the viewfinder, will it be crammed on the right side of my face? haha.
What about the rest of you? Any other left eyed shooters?