I would actually recommend wikipedia:
Design Patterns on Wikipedia From there, you can get to individual patterns, and it even leads you to Sun pages which are right out of the
J2EE Design Patterns book.
There's actually a book called Design Patterns:
Design Patterns Book I actually put together a list of recommended books for
SCEA:
Important SCEA Study Guides
My priority would be the Cade book, UML Distilled, the Sun Press SCEA book, J2EE Design Patterns, Head First Design Patterns, GOF Design Patterns, and then Java Modelling in Color to help you on part II of the exam.
-Cameron McKenzie