I am happy to share my experience here that I have cleared my SCJP 1.6 exam with 98%. I prepared for the exam exactly 3 months and I have little experience with Java. I should thank javabeat for the good mock exams.
1) I used K & B's book for preparation
2)Used JavaBeat's mock exams for scjp 1.6. which provide very good practice tests, importantly they provide chapter wise test to assess our knowledge on each chapter.
3)gone through this forum for all the replies which helped me to learn many concepts.