Our trip took place from late March to early April. We really enjoyed Texas! Thanks again to all for your helpful suggestions.
If you like reading trip reports, I blogged the whole trip. My blog is in no way commercial (at least not for me; I'm sure WordPress is making money off of my content, but that's another story). If you are going to be offended by me posting a link here, just don't click on it. Save yourself the trouble. (I only say this because one time when I posted a link to my blog someone here got in my face about "promoting" my content.)
Here is the link to the start of the trip. Each succeeding day or group of days is linked at the end of each entry.
-Speak