This is the first certification I have taken for 5+ years -- my SCJP and SCJD certifications are from 1998 and 1999 and I have not taken the SCWCD or SCBCD exams yet. I focused on SCDJWS because I have developed quite a few Web Services and felt it was the more unique certification to match my skills.
I studied the Richard Monson-Haefel book for a few weeks and consider it to be pretty much the �bible� for broad background material on SCDJWS. Then I read the Sun Blueprints book and then read over Makalai Zaikin's study guide. The MZ study guide had the most concise and accurate information and was the only source that covered Security Issues and Design Patterns. Both Security and Design Patters were definitely covered on the exam � maybe 6+ questions on each.
I then went through each of the study exams I could get -- there are not enough questions in any one exam yet so I used 3 -- the one from Wizlabs (207 questions), something else online called XYZWS.com (45 questions) and finally Makalai's study exam (92 questions). Again Makalai's explanations were the most comprehensive and concise but they were all helpful in keeping me focused on the subject matter. I also followed down links sometimes to read parts of the actual specifications � its good to see the actual specs in action.
Many thanks to Makalai for his wonderful material !
And many thanks to the Java Ranch community for all your terrific support !