I know there's an escalation league going on here in College Station, although I guess that's not really applicable...
HOWEVER, the guy running it is apparently the 3rd best JSA player in the world or something and the 2nd best in the US. I don't know what that means about the size of the infinity tournament scene or his skill, but eh.
If you're interested, I can get you in contact with him. I know he wants to promote the game pretty big and try to host tournaments and such here or help with some in Austin. He drives as far as El Paso for tournaments so...