Not Blackjack and not Hydroguy, but I'll chime in anyway. It's going to be busy. We were there this past Sat-Tues. Saturday afternoon/evening was nice. Sunday was busy. Monday felt busier. We saw a wait time of 85 minutes for Space once, 70 minutes for Indy, 60+ minutes for Toy Story. Screamin' was commonly 35-45 minute wait when we were back there. Bear in mind we don't hang out much at the parks at the busiest middle of the afternoon time, so I don't know what wait times were like then. Anaheim schools were off, and many other schools were off as well. The week you're looking at I believe a lot of Los Angeles area schools are out as well as lots of Sacramento ones, and it's the week before Easter, so I expect it will be a popular time. Just follow all the advice repeated here on these boards about getting to the gates before opening, using fastpass, and eating at non-peak times. We had a great time, but we've had a lot of experience maneuvering around the crowds. We also are not people who need to ride the headliners over and over every day (but, yes, we definitely hit all the headliners along with a bunch of other stuff).