Looking for a group to play with in the east valley area, I've been playing 4e with a friend and sort of filling the role of a dm as well as running a pc to teach him how to play, but we would both really like to get into a local group.
I recommend that you check out the AZ RPG group on Yahoo. They will notify you of upcoming conventions and game days at local stores. If you're willing to travel to Mesa, A Gathering of Players (AGOP) meets monthly at Gamers' Inn. Their next meet is September 27.
While store game days may not be what you had in mind, they're a great way to meet other gamers. Meeting people this way lets you learn what they're like BEFORE inviting them to your home. (Discovering someone won't work out can be awkward after you've invited them to join a game.)