At the risk of getting flamed, here is my opinion on the exam.
You don't need any experience, save basic programming experience. You will need one copy of the Bates and Sierra book to study. If you have no
Java experience, study it for about 3 months, take all the tests, samples, etc.
Look into other sources if it makes you feel better, but study the K&B book. The 5.0 version of the book is coming out this summer, in time for the new Tiger exam. I would wait for that.