The third edition of my JSP book is making its way through production and should be in the book stores sometime in December.
It covers the new JSP 2.0, JSTL 1.1 and Servlet 2.4 specifications (i.e., J2EE 1.4) with exiting new features such as tag files (JSP-like files for developing custom tags), use of the Expression Language in template text and any element attribute value, more powerful XML format support, and a simplified API for Java tag handlers.
You can pre-order the book now at Amazon.com and other online book stores.