I recently got my SCWCD and SCBCD.Now I'm thinking of SCEA. Can I do this without doing SCJDWS. Are there any web service contents in any of the SCEA parts? What is the best resource for finishing SCEA Part1?
There are no pre-reqs for the SCEA, see the FAQ. I think you'll be well prepared for many of the subjects in part 1 with your certification. There are a lot of EJB-questions. Some are like the once on the SCBCD, and some are a bit easier... But there are a lot of other subjects you will need to read up on for part 1 (security, legacy connectivity etc...)
SCEA part I is easy. If you have completed SCBCD, then you should study the other subjects. I suggest you to read Mark Cade�s book as a guide to know what you must study beyond EJB.
But be aware that part II (and III) are easy for experienced developers and architects. It is not a matter of multiple-choice. You will have to produce an architecture for a "real" application.