I have just passed the 642-812 BCMSN on second attempt. Thanks to all those that have responded to my SFQs and helped with the process.
My first attempt was about two months ago, this exam was not identical but there were some common questions. This adds credence to the theory that the exam is made up of a random pool of questions.
I has two sims, one simlet and one drag-n-drop question.
Without breaking NDA, there seemed to be a lot of questions on Wireless, uncluding on the ACU which isn't in the study guides I was using.
I used the Cisco press study guides, most recently concentrating on the weak areas from the first attempt. I have had previous switch experiance but no active hands on for this exam.