Passed the 310-065 exam last week, scoring 98%.
I want to say thanks to Kathy and Bert for the excellently written SCJP 6 Study Guide (it's a standard, from my point of view, on how a certification study guide should look like), and to Devaka Cooray for his great exam simulator (it contains tough question, well above the level of difficulty of the real one, but it's an excellent resource in preparing for the exam).
I am currently working on setting up a preparation plan for the OCEWCD (SCWCD 6) exam. I should probably initiate a new thread, but to save time, if anyone can recommend good resources to prepare for this exam, I would appreciate it. In lack of other books, I was thinking of studying "Head First Servlets and JSP, 2nd Edition", along with a selective review of the new specifications (for Servlet, JSP, EL, JSTL).