I passed my CCNP - BCSI exam with 90% in December 2008 and I'm currently (March 2009) still studying for the BCMSN exam!  I found this exam tough as there was so much in it (like BGP) that I don't do frequently enough to remember!  I think I've forgotten half of this already!

On the left you can find a link to the documents area, this contains the notes that I used to pass my BSCI exam