you may wanna try asking over on http://theshizz.org/forum for whats up in az. its mainly known as the minibosses messageboard, but if the general forum isnt dead, you could make posts in there about where to set up shows. those guys are in that mesa/tempe area, but hey. maybe if you're tryin to get some shows set up, or want to try and contact people on the board there who know about getting shows set up, you can try and meet up with those guys. minibosses play shows a lot these days it seems. i bet they'd be tickled pink to find out theres a bit of a chip scene brewing.
like i said, the minibosses msgboard part of the forum is really the more active part of it, i dont check the general forum there too often. but the general forum i think is where most of the local arizona heads are gonna be posting. i dont even read the mb's forum too much anymore and ive got like 30,000 posts there or something ungodly. people who post there are from all over too. but theres still a good bit of chiptune discussion that goes down on that subforum too, i would think. one of the more used forums over the years for sure. but yea, but give it a shot, i think it'd be worth a try.