Has anyone here cleared AFMC exam? or appeared in AFMC exam?I nedd some advice...Please Help!!!?

I am a medical student of class 12, CBSE board and i am looking forward for the AFMC exam.I want to know that how difficult is the level of the exam as i heard that its quite tough and how much time we require for the thorough preparation of the exam and how to prepare for the exam and how much preference should be given to physics and chemistry as compared to biology and whats the future after clearing the exam like what course or whatever.....and will there be AFMC exam in 2012 or there will be just AIPMT( All India PMT)...and.....thats it.Help Please!!