<font color=navy>I would give it three days for Disneyland & California Adventure, and would add another day if you'd like to enjoy Downtown Disney/Hotel area, too.
There are other things to see/do here in So Cal, also, including:
* Newport Beach/Balboa Island
* San Diego w/its zoo, wild animal park, & Sea World
* San Juan Capistrano Mission
* Many museums, Ghetty Center, & the La Brea Tarpits
* Hollywood - Chinese Theater/El Capitan (Disney), etc.
* Universal Studios
* Knotts Berry Farm
* Six Flags Magic Mountain
* Drive along the coast, see the tidepools, Palos Verdes & Wayfarers Chapel, or go south to Laguna Beach, La Jolla, etc.
* Sta. Catalina Island