this is probably a really DUMB question but here goes:
is it possible to sync my MS Outlook address book to my NOOK?
Nook HD and HD+ support Microsoft Exchange. Is your outlook via your company and via Exchange or not?
You can go to Page 76 of the User Manual and check how to set up an account.
Support Page: http://www.barnesandnoble.com/u/NOOK-Support/379003184
Hopefully someone will step in and let you know whether setting up Exchange account also imports the address book.