Welcome to NuRVers!! Can't wait to include "Welcome to the Road!!" as well!! :)
It is mind boggling how much stuff we accumulate. It is a little overwhelming when you are going through the process, but once it is done - or close to done - it is an amazing feeling! So liberating! I am sure you will find that the process and experience of inventory reduction is a satisfying one.
Check out
http://www.technomadia.com/ They have done some articles on preparing for fulltime, as well as an article or two on getting rid of stuff. You might find something helpful in there.
Good luck with your preparations! Hope to see you down the road soon :)
--kev