I want a Yorkshire Terrier for my sister's birthday but I'm looking for a reputable breeder in Texas, more specifically, central Texas.
So, I need someone's expert opinion. I don't want to buy a puppy from a pet store but I don't know where to even start looking for a good breeder!

Also, what kind of price range can I expect for a Yorkie?

TIA!

A good place to start is by contacting your local veterinarian. They can tell you about the quality of care that the breeders they see as clients.
You may want to consult akc.org for a list of Yorkie breeders and rescue organizations. There are a lot of purebreed rescue groups. Toy dog groups tend to be pretty busy because a lot of the dogs they end up with were owned by elderly people, who can no longer care for the dog for whatever reason. Also, you may want to check your local shelter. A lot of smaller dogs end up there, because people don't realize how high energy they can be.
I would recommend you consult akc.org to help you know what to look for in a breeder if that is the route you decide to go with.
Lastly, and this is just my opinion, it generally is not a good idea to get a pet as a gift for someone, unless they are completely involved in the process. Choosing a new member of the family is a really careful process, so ideally you should have your sister involved in every step.

^^ I agree, is this a well thought out plan? Have you done your research on the breed? As far as it seems, it doesn't look like you have if you are asking for this type of advice on a purse forum rather than a user group for yorkies.

I know someone that just adopted from Oklahoma yorkie rescue, the adoption fees are low but you have to figure out the transport.

I third the rescue suggestion.

If you want to go the breeder route, start here: http://www.akc.org/breeds/yorkshire_terrier/index.cfm

Go to dog shows, get to know people in the community and ask questions. Read up on how to find a good breeder and what are good questions to ask -- there are guidelines all over the web. Yorkies are extremely popular right now, and are therefore there will be a lot of puppymill dogs and backyard breeders -- you will really, really need to do some homework to sort through it all and ensure that you are *not* supporting them. For example, do not buy from anyone who advertises "teacup" size dogs. Familiarize yourself with common genetic issues in Yorkies, and make sure that both parents are health tests for each of these (heart, eyes, hips, elbows, etc.).

I also suggest not giving a dog as a gift. In fact, from what I understand, most good breeders will refuse to allow someone to get a dog from them and give it as a gift -- they're interviewing the prospective owners as much as they're being interviewed.

^^^ Stella is definitely right about going to dog shows. If you're serious about getting an amazingly well bred dog that has a reduced risk of health issues because of its breeding, go to local AKC shows and talk to the breeders that are winning - they may not be selling their dogs as pet stock, but they are the people who know the other great breeders.

And definitely stay away from "teacup" dogs!!!!

Such dog shows must be captured via such platforms as soon as possible. Pics should be uploaded here along with details of the breeds.
Resource: yorkshire terrier puppies for sale in michigan

There are so many deserving animals languishing in 'shelters'. Please consider saving a life and adopting.