This is just an update I recently passed my CCNP SECURE exam on 11/30/13. Just thought I'd share some of the useful materials I found.
- Majority of my study was based on skillsoft (MUST READ TOPIC NOTES!). I do highly recommend if available use skillsoft. Took plenty of notes and re-read god knows how many times! it also has built in labs (annoying part is you must type EXACTLY what they expect if not you get an error).
- Read CCNP SECURE OCG - It was okay there was lots of errors as mention by the reviews in the amazon post.
- Read CCNP SECURE Quick Reference (did not finish) - More of a high level overview on stuff I wanted to do a quick review.
- Read Network Security Technologies - I actually enjoyed this book there was some good stuff in here that helped me pass the SECURE section.
- Watched INE SECURE videos and CBT Nuggets SECURE videos - Kinda hard to choose I loved both of them 

 but INE did take a deeper dive. CBT Nuggets was mostly like a CLI tour of the material.
Overall I'd say if possible use skillsoft ( fortunately I have an account from my previous employer and I get tons of free up to date skillsoft training. account hasn't been disabled 

 ). Next I'll be working on the FIREWALL exam on my spare time for fun I'll try to write a much better review and details. Other than that hope you guys all have a great day and Happy Holidays!