Does anyone know of a good cat groomer?

I have a young cat that is full of mats on her chest and under both legs. For whatever reason she never learned to groomer herself very well. To top it off she hates to be picked up and will only let people pet her on her back. She is very feisty and will scratch and bite. I love her to bits and don't want to traumatize her by dematting her myself. I am also afraid of cutting her skin.

Has anyone ever sedated their cats for grooming? If so how did your pet react and what were the prices like for this.