Open console. Type "player.setrace sabrecatrace" or "player.setrace snowysabrecatrace". Sure, the third person camera will be screwed, and its completely unplayable, but at least you can get some cool screen-shots, and that's the best we can do so far.
Not true. I use,"Player.tc" and "tc" to take control of a nearby creature or NPC.
You will only be able to walk and stuff. Unless you do it when the creature is hostile to you. If you do it when they are hostile, you gain access to their combat animations.