starting worker coop in california

[rick_kehret]

Hi,
I'm starting a renewable energy worker cooperative in sacramento area.
 I've read several articles from usworker.coop and others, but have
not found specifics on how to incorporate (like can I use
legalzoom.com or is there a cheaper way, should it be an S-corp, is
there common stock, it's par value, etc..)  Any help would be appreciated.

Thanks!
Rick