Just in case anyone downloaded my letter-size version of the petition, it turns out that you have to print the four-signature sheet on legal-sized paper; the letter size version would get rejected if turned in. There is a single-signature letter-size version available on the Californians for Democracy website; if you want to collect signatures from friends, you need to either make a lot of singles, or go print some legal size sheets at Kinko's. The deadline for signatures to get in to the Secretary of State is April 12, so if you're going to collect signatures and then get them to the organization, you probably want to mail stuff by April 5.
Please consider getting a few signatures from your friends. We need to end the practice of letting 34% of the legislature (elected by roughly 34% of the voters) completely dominate our government.