Hi all, I took SCBCD today and cleared it with 94 %. The test was neither too difficult, nor too easy. After the preparation for about a month and a half (about 2 hours per weekday and 5 hours per weekend-day), it appeared moderately easy (and moderately difficult). Had lots of questions on MDB and EJB QL.
I read HFEJB once, tooks mock tests from SoftBCD, INE Systems, ejbCertificate, JDiscuss and JPilot and used Mikalai Zaikin's SCBCD guide and then I was all set to go. Some posts from Java ranch were really helpful to understand the basics better rather than spending time memorizing stuff. Occasionally I had to refer to the specs as some info from the above sources contradicted with others.
Next, I am planning to appear for SCWCD.
Good Luck to all who are preparing for SCBCD and other exams.