I purchased the 2011 FISMA Authorization Process Guide by James P. Litchko. I also purchused his sample questions and answers. By far one of my better purchases. His guide is an excellent resource for anyone pursuing the (ISC)2 CAP certification.
I did find it challenging,like any IT certification exam that I take, but I felt prepared with the materials used for the exam:2011 FISMA Authorization Process Guide and questions & answers & ISC2 CAP studyiscope set. I studied for one month solid.
I haven't sat for both exams but I agree w/badrottie about the CISSP. I just sat for the CISSP 3 days ago and even thou it's a bear, it's doable!! Im interested in the CAP now. Did you find it to be pretty challenging?!? How long did you study??