I'm mentoring SANS MGT414 Training Program for CISSP right now. Here are some additional resources for students studying for the CISSP.
CISSP All-in-One Exam Guide by Shon Harris:
Official (ISC)2 Guide to the CISSP CBK by Harold Tipton:
CISSP Study Guide by Eric Conrad and Seth Misenar (both SANS Instructors):
Eric Conrad has a sample chapter of his Study Guide available on his website:
He also has 500 free CISSP questions:
More sample questions and forums: