Hi and congratulations on your pregnancy. Austin has a wealth of really great, experienced midwives. I used Natalie Lake and really like her. Some others that have good reputations are April Bullock (she was my back-up midwife), Illysa Foster, and Michelle Fitzgerald.
Here's a recent thread from the Texas forum on MDC on local midwives: http://www.mothering.com/discussions....php?t=1220336
Also, you should check out your due date club over in the I'm pregnant forum. It's really fun, it's all women who are due in the same month, and on this website probably about half of them will be planning homebirths.