Kurt Wimmer's "Equilibrium" has been mentioned already. In all seriousness, does anybody practice any kind of kata with guns? For those of us who practice weapons kata in the first place, why shouldn't we treat firearms like any other weapon and practice kata with them?
I dabbled a while ago with replacing a sword with a gun when practicing my iaijutsu kata. Because drawing the sword/gun is integral to the art I figured it would be usable in today's self-defense environment. It also occured to me that the kata "Stick and Knife" (from kosho-ryu kempo) does not have to be done with a stick and a knife. You can effectively replace the knife with a gun and practice short-range gun fighting and then replace the stick with a knife for even shorter range.
I understand that this idea sounds dumb, so I welcome your ridicule.
"Just because you're paranoid don't mean they're not after you."
- Kurt Cobain