I can't really say it any better than Chuck, so follow this link (in title above) to his post about our Texas BBQ travels.
Here's the links to the best BBQ joints in Texas:
Louie Mueller Barbeque (Taylor, TX)
Southside Market (Elgin, TX)
Kreuz Market (Lockhart, TX)
Smitty's Market (Lockhart, TX)
I wish I could send a link to smell-o-net... but it doesn't exist. Maybe someday!
I can't recommend these places enough. We've had some wonderful meals at all of them. And brought home some sausage from Southside Market to cook for ourselves (soon!)