Hale county is nice but a little too far west for me. Fortunately Texas is blessed with lots of land.
My girlfriend's son has a ranch out near Zephyr Texas, so I know and like that area.
http://www.pecanpeak...m/about_us.html
There is actually still a lot of land around that is relatively close (70 to 80 KM) to the Dallas-Fort Worth area, where I will be living. Well, close by Texas standards.
As far as the type of home that I'm hoping to build, I'm planning on building what is called a Net Zero Home. These are homes which are built from the ground up to be super energy efficient, utilizing lots of insulation and innovate technology like a Geothermal heat pump, passive and active solar and wind power, if you live in a suitable area.
http://sustainablehomesoftexas.com/
Their Point Source Home has enough electrical generation capacity to power the entire house and charge an electric car. Combine that with a well and rainwater harvesting system for water and a on-site waste water treatment system and you can truly be self-sufficient. Surprisingly the costs are not astronomical. You'll spend a little more initially (15 to 20%) building the house, but you'll be able to recoup those expenses in around seven years.