I second the vote for Camp Harmony (San Francisco Folk Music Club). Plenty of fiddling to be found there. But watch out if you like to sing, too -- one fiddler I know never made it to a single singing session this time.

What you'll like depends on what you want: Camp Harmony is pretty do-it-yourself: no guest teachers, no luminaries. People sign up to lead workshops, dances have open bands, concert spots are first-come first-served and jamming happens everywhere at all hours.

Puget Sound Workshop is much more structured than that: the most fun I had there was cutting class and swimming in the lake -- but that's because none of my classes suited me. The concert was good -- I still remember particular songs I heard that night (some years ago). I found the song circles leaning heavily toward original songs -- NEVER a plus, in my humble opinion, and I write.

If you like traditional music, check out the camps put on by the Vancouver Folk Song Society -- one in late June, one in early December. The quality of music has been uneven, in my experience, but it's a good group of people, and some years it's wonderful. Of course, it's the other side of the world for you.

Augusta might be closer. A friend of mine swears by it and goes every year. That's the Augusta Heritage event mentioned above.