CoasterMatt - Need Universal Studios Advice

[blueerica]

A friend is going to the SoCal area and will be hitting up Universal Studios for a day with his wife, and two kids (aged 10 & 8 (52" & 48"), really easy going, not easily scared). They don't have a full day to spend there, and I want to make sure they get the best stuff to do in, since they really deserve a great vacation.

What are the top five things they need to see/do while they're at the park? Anything else?

Anyone else have any advice??

Thanks!