When I did mine I watched videos, read book, re-watched videos and took a full practice test (250 questions), then when I knew my weak areas I read the book (Shon Harris) and re-watched those videos, then another practice test and so on.
I would also visit a lot of forums, read on related topics and fill the holes I had in my knowledge (had a networking ITSec background).
Realize this is a management exam, think like management, not like a techie (that was my hardest challenge).
Continue reading: www.quora.com/What-is-the-best-method-to-study-for-the-CISSP/answer/Thor-Pedersen-4