All I'll say is that most of the cat mounts I've seen are just bad. I've seen some guys who could do just fantastic looking deer, elk, birds, etc., who just cannot do a cat mount to save their lives.
Having cats all my life, I'm hard to please with a cat mount. I know what they naturally look like in any number of positions and poses, and most mounts don't cut it. The guy in Weasle's link certainly does. Guy's work is fantastic.
I've got a guy in AZ who I'm going to give a shot on my cat when I get one.
Cat Mount
Wellers Wildlife Studio
I am not really impressed with most of his lion mounts, but his bobcat mounts look pretty darn good, and his custom habitats are very nice. Still, I don't think he can touch the guy above, but that guy is not taking in any more business either, and is all the way across the country. Weller's is a couple blocks from my brother's house, so it works out.
If I ever got an extraordinary looking cat though, I think I'd beg the guy from Nasa's link to take the job though. I've linked a lot of threads to that guys site myself.