Appeared OCM-JEA 5 PART 1 and passed with 93%. I had 3 incorrect answers, one from JSF, one from web services /XML over HTTP, one from design patterns - gang of four. I thought all my JSF, Web services answers were correct, but had doubt over design patterns. there were around 10 questions from patterns all together. There were several lengthy questions and most of them covers your knowledge and experience in J2EE. SCEA forum was a great resource.
The preparation took me around 3-4 weeks. Mainly read the Cade book. Refreshed my notes on SCJP, SCWCD, OCPJBCD, OCPJWSD, JPA exams. After reading Cade book I realized that I was doing the role of a Java architect directly or in directly in addition to design, development etc for the past several years. Lot of questions you feel like none are correct answers, but then you have to put yourselves in shoes of Cade, exam creators etc.
1.Sun Certified Enterprise Architect for Java EE Study Guide (2nd Edition) [See CadeSheilSceaFaq] Mark Cade, Humphrey Sheil
2.Mikalai Zaikin notes on SCEA
3.notes from SCJP, SCWCD, OCPJBCD, OCPJWSD, JPA exams
4.Core Java Server Faces
5.O'Reilly Enterprise Java Beans 3.0
6.oracle J2EE 5 specs
7.Head first design patterns
8.Core J2EE patterns - second edition
9.design patterns - from Wikipedia
now it is time to focus on PARTS 2 & 3. will buy the assignment soon