There are about 17.2 million nuiances with trying to make money through real estate investment. Personally, I'd be really scared to do anything in a market I didn't know inside and out. For me that means investments that are close to home, but there's nothing that says you can't learn another market. I would think one of the problems with Texas is that very little is landlocked in any way, so you're always going to have competition from new construction whenever the market is performing reasonably well. They've also basically outlawed lease-options, which are a pretty powerful way of making money.
I'd check out the web before reading a specific book. Personally I like:
http://reiplace.com/newsgroup/list.php?f=1 Their focus is flipping, but they talk about just about everything.
http://www.thecreativeinvestor.com/r...rum-index.html is sort of okay, but it seems if you ever want to do something as "complex" as doing a search they want you to sign up for their $10/mo service -- at least! The basic membership that lets you read the forums is free though.