I don't really understand all these negative comments about the Levi/Heller. I'm taking the SCWCD exam in two weeks. Until a week ago, I was using "More Servlets and JSPs" from Marty Hall.
But am I glad I bought the Levi book now! I have just finished studying it in detail, and I find it is SO MUCH better as an exam-prep book. Much more focused, much easier to understand, far better structured, and lots of test-yourself questions.
I admit, I haven't tried the CD yet, as I'm leaving that for the upcoming revision phase. But I have no complaints about the book. Yes, there are some errors - but we're adults, I think we can cope with that!
Tony.