Not sure what land in Texas is going for. But for prime land here in Nebraska, it's selling in places for $12,000 per ACRE!
Sorry to break it to you, but without financing, $20,000 is going to be just about enough to maybe put a mailbox on, much less a feeder and a herd of deer.
Now a $20,000 down payment on a piece of land could get ya started.....
Just curious, what did you go to school for? My guess isn't real estate or finance. (Just bustin your balls)
Look up a real estate agent and listings for the area you are interested in. It will give you an idea what your local market is looking like.