I would recommend this book:
http://www.amazon.com/MCTS-Self-Paced-Training-Exam-70-528/dp/0735623341/ref=sr_1_1?ie=UTF8&s=books&qid=1218830714&sr=8-1
I have just read it to take the exam, and although I knew the web theory part, I found it to be of great value.
This of course is a ASP.NET specific book, but that is what I would recommend learning anyways.
After you learn all the ASP.NET stuff, I would suggest reading up on JQuery.
Happy coding :)
