Impaling alers is good thats who im in with. its north of where u are going to be but its got like 200 members. they meet once a month at larrys home brew supply membership is like 15 buck for a year and they prorate it. lots of good people!
You can also look at HoPS, a.k.a Homebrewers of Puget Sound. We meet once a month at MASH in Tacoma, WA, and the dues are 20 bucks a year. We either help with or put on a lot of the homebrew competitions and events in the area, so we have some very beer savvy members.