2 - HFSJ2.0 - read it twice with exercises.
3- Links/success stories mentioned on ScwcdLinks were quite useful.
4 - MUST - Piotr Nowiki's exercises were very useful. Do it after reading first walk through of Servlet 3.0 specifications.
5 - MUST - Nikos's Java blog - very nicely clears your concepts.
6 - ENTHUWARE test studio - really worth the price. It streamlined my preparation & gave me lot of confidence. Highly recommended.