To prepare the exam, you'll need 2 things, the study guide, and the practice exam.
For practice exam, you can use one of the following:
www.whizlabs.com www.enthuware.com www.ucertify.com cameron's exam questions
Sun's E-practice exam.
Good luck on your preparation, when you get certified, put your name in
http://faq.javaranch.com/java/ScjaWallOfFame best regards
Jeffry Kristianto Yanuar
SCJP 5.0
SCJA