Since I was about to leave, I didn't read the rest of this thread, so I'm just going to give my two cents. They already basically hinted to using a controller/natal hybrid.
That means that you'll use to the controller to move, aim, and shoot, but to look around you actually look around. If done right, it could be amazing, but if done wrong, well... *cough*callofduty3wii*cough*
By the way, in case you didn't notice, this forum does prefer correct spelling and grammar. Don't think that they're trying to insult you or anything (except for those that blatantly do insult you, just ignore them). It's just that we like to keep the site looking nice and clean and intelligent, and although a paragraph may be a genius comment, with bad grammar/spelling, most people won't give it a second thought and dismiss it as nothing.