NFPA 72 Reference Books

[opie]

I need to update my NFPA 72 book to 2007 and would like to get one of the handbooks that includes the full code plus commentary. I can always buy the code separately if there is a good design/handbook that doesn't have it included. I currently only do single family residential but may have an opportunity to get into some MDU stuff so I really want to bone up on fire systems design and requirements.

Here are a few books I am considering:

NFPA 72 Handbook

NTC Orange Book

NTC Brown Book

Suggestions or comments are invited and welcome.

Thanks

Scott