I just bought a DVD on ebay that is all about "Yorkie" grooming. It was made by a lady that has owned yorkies for years and I think she may be a breeder, can't remember. I'm going to watch it this morning and I'll let you know if it's worth the 33 dollars I paid for it
As far as I know there isn't a video/dvd on grooming that is specificly geared for yorkies!