I passed the cert today with 97%. I agree with a lot of people here in the forum that it is very very theoretical. But if you have studied enough, it is not very difficult. I had quite a bit of practical knowledge coding Web Services in Java. Here is a list of study materials.
1. Richard Monson's book for SOAP, UDDI, JAXR. JAXP
2. Web Services Up and Running book for JAX-WS, JAX-WS security, WSDL
3, Sun Tutorial for WSIT
4. Ivan's notes for Design patterns, Best Practices. (this guy rocks, and knows what he is doing. thanks a bunch)
5. Slides from javapassion.net and worked on each assignments using Netbeans.
I do have to admit that I am "standing on the shoulders of giants" concerning the study guide and a lot of the other material I have written.
Without the people designing and implementing all the different frameworks and writing the specification documents etc, there would not be much for me to write about.