You might talk to Judy (Yorkiemom1). She is in Houston I believe and you can tell in her posts here how much she loves her yorkies. She is a breeder you can be confident in getting a great pup from.
http://www.yorkietalk.com/forums/member.php?u=26123
Here is her site:
Index - RoseHill Yorkies
The breeder I got Cookie from is incredible (Deb Sillers, she also posts here under the username Amazing Yorkies), but she is up in Oregon so she'd have to put your pup on a plane unless you want to make that drive or flight to pick him/her up.
Buying yorkies can be a real minefield with all the bad breeders and health problems they introduce through either complete negligence or through trying to breed tinies. What's really sick is some of the worst breeders are also some of the most expensive.