March 24-25 is the annual Rhone Rangers weekend in San Francisco. Tickets for the grand tasting on Sunday are $45 and you can buy them here.
Organic Rhone Rangers include (take this list with you):
• Ambyth (all wines)
• Beckmen (all wines)
• Big Basin Vineyards (a few wines)
• Bonny Doon (some wines)
• Cabot Vineyards (all)
• Landmark Vineyards (some)
• Lone Madrone (a few)
• Morgan (a few)
• Montemaggiore (all)
• Quivira (one)
• Qupe (some wines)
• Tablas Creek (all except Patelin)
I went last year - these wineries are absolutely awesome. In particular, I was bowled over by Qupe's legendary Syrahs from their own estate vineyard (Sawyer Lundquist), Tablas Creek's entire line, and biodynamic all star Montemaggiore (queen of the Syrahs).
Biodynamic wineries Ambyth and Beckmen are also star producers (and priced accordingly).
Bonny Doon - responsible for starting the Rhone Ranger movement in California - fills out the more affordable end of the spectrum and on up.