Newcomer, you can check out a Connie Mack team in Northern Calif.
Santa Rosa has a team
Danville Hooks was looking for players: http://eteamz.active.com/danvillehoots/
Golden Era has a Connie Mack team: http://www.goldenerabaseball.com/index.html
Calif Smoke: http://eteamz.active.com/smoke/
El Dorado Hills Vipers: http://eteamz.active.com/EDHVipers/
Bay Area Baseball: http://www.bayareabaseball.com/
There are others in Northern Calif. Coach G or Greg can most likely get you in touch with them.
This is a link to a site that has College Summer leagues:
http://www.geocities.com/colsportsites/summer.html