Redistricting 2012

In August 2011, the California Citizens Redistricting Commission adopted final district maps for Congressional, State Assembly, State Senate and Board of Equalization districts.
The new lines for the state will take affect in December 1, 2012 following election results.  The Federal districting will take effect in January of 2013.
The California Citizens Redistricting Commission link provides you the opportunity to view the stages of the maps from start to finish.  The Meridian Pacific Redistricting 2011 link allows you to view each district individually and lists those who are potentially running for election in 2012.

California Citizens Redistricting Commission
Meridian Pacific Redistricting 2011