If u have time and patience, wait for Kathy and Bert's 'Head First
Servlets &
JSP' book which is due for release this June/'Early July'.
1.4 exams covers Servlet 2.4 and JSP 2.0 specs along with EL and Design
patterns. Whereas the 1.3 exam covers Servlet 2.3 and JSP 1.2 specs. No EL and
design patterns in 1.3 exam
hth,
Sudharsan