I LOVE Baylor Plano, but they do not do obstetrics there, it's gyno only. Part of that hospital is cardiac care only (The Heart Hospital at Baylor Plano), but the main hospital is other "adult" specialties such as oncology, gastro, etc.
I delivered downtown at the big Baylor hospital and while it's older, it was great. I basically lived there in their Antepartum unit and the Nurses were also fantastic. Excellent hospital, HUGE selection of Dr.'s, and we wound up having a preemie and knowing that they had a top-notch NICU was an important part of my decision to deliver there, just in case. I saw Dr. Sandra Brothers and Dr. Melissa Crochet at OB/Gyn of Dallas. They do have high-risk experience but the majority of their practice is your standard normal pregnancies. Their website is http://www.obgynofdallas.com/index.htm. As for these two Dr.'s, they are a couple of fantastic doctors and outstanding human beings as well.
If you are looking to deliver in the Plano area, I have heard a lot of great things about Presby Plano or Medical Center of Plano, but I don't know any docs at either of these places personally. If you want that "hotel-like" experience that I think Baylor Plano has going on, I got a brochure recently about the Women and Children's Center at Centennial Medical Center in Frisco. That looked FANCY.
Good luck!