Which book to get ?

Hi freinds,

I am attending coaching classes. However I feel I need to refer to a book to clear some doubts/concepts I am not able to get from the classes.

Please tell me which book I should get for IPCC FM ?

Moreover from the exam point of view I am thinking I should get a scanner so that I can know whats the pattern of questions in exams and prepare accordingly. So also suggest which scanner I should go for. I heard from people that there are different types of scanner from different publishers. Please advice. My due date for exams in May '10.

Thanks