If you live in Texas then clearly the answer is the Texas Linux Fest, April 2, 2011, Austin, TX.

http://www.texaslinuxfest.org/

"Texas Linux Fest is the only state-wide, community-run conference for Linux and open source software users and enthusiasts from around the Lone Star State. Whether you use free software and Linux at home, in your place of business, in your school or non-profit, or you are simply curious, Texas Linux Fest offers something for you.

Join us at the Hilton Austin this April 2 and meet fellow Linux users and developers from around the state."