I have three - Sniper (a major bird catcher, squirrel eater, and a mouse's nightmare!), Kimber (a huge furball that sheds on everything!), and Varget (a beautiful siamese that is the sweetest kitty I've ever owned.)
We used to have a Magnum (got hit by a speeding mercedes), and a Winchester (stolen by a kid at a neighbor's garage sale).
I also have two turtles - Smith and Wesson. They keep the cats occupied... staring at their tank! (We also have a bunch of feeder fish that the turtles refuse to eat so they kinda are "pets".)