http://www.bikeforums.net/showthread.php?t=364674 is a recent thread by cutwolf with some advice on a few things. Browse the tips sticky. Browse some other threads in the touring forum, if you click on "replies" in the main forum page it will sort the threads with the most active one at the top.
Do you already ride fixed? With a load? Through hills? If not, go gears. One famous tourer who uses a fixed gear is Kent Peterson, do a search for his name or his blog or mile43 on google. He travels very light (no big strong rack or trailer).
Any experience camping? Travel as light as is safe and affordable for you.
Good luck.