As i mentioned i took marcus green's all the four exams, K&B master exam,
then Khalid Moghul's exam,
and Dan chislom's single topic exams were really a good way of leraning the concepts.
The exams listed in the mock exam list in this site are also very good.
All of them gave me lot of confidence and good way of learning.
And what people say here is absolutley correct one should give lots of mock exams before attempting the real exam.