I know a great breeder that I got my puppies from. Her name is Susan and she and her husband run Pups N' More (
www.pupsnmore.com). She knows what she's doin'! I'm not sure if they have any litters available.
My little Fred has a great temperment (a little hyper at times), his coat is great and he is one healthy fella.
Have you tried looking on DallasNews.com? There are some Yorkies on there but beware of bad breeders!