S.S.
Dr. Lamar at Clinics of North Texas is my favorite.
The women's clinic doctors also have a very favorable reputation.
Avoid Mehta (on 10th) and Ghambari (also Clinics of North Texas) (for OB)- but from your description, you've already met G. I have heard that Mehta is an excellent Gyn surgeon, should you decide on that option for dealing with your endo - but he has a definite God complex when dealing with pregnant women, and Ghambari uses forceps routinely on 6 lb babies.
Good luck
S.