Feel free to add any that are close. These are the ones I have seen.
T-shirt Explosion- Springdale, AR Febuary 25th Points TBA
Let's show some local love and get a big showing here.
Top deck games- Tulsa,OK Febuary 18th, 2000 points
http://www.topdeck.us/Events.html
Meta Games- Springfield, MO March 17th 1850 points
http://mguinc.com/forums/index.php?/topic/4805-warhammer-40k-in-2012/
I will be attending all three, as they fall on my days off.