In the Los Angeles area and in Southern California, Universal Studios Hollywood and Sea World San Diego are major attractions. But the biggest draw is still Disneyland in Anaheim.
Kijubi.com offers Disneyland discount tickets that are worth a look as you plan your visit. The passes cover a two-day stay and progress to six-day stays for those who want to see every corner of the park.
Beyond Disneyland, Hollywood-CityPass might also be worthy of consideration.