This is the granddaddy of long-distance trails in the U.S. Of course, Ты don't have to do all of it to enjoy the many great hiking, backpacking and camping opportunities it presents.
If Ты want to go ultralight (backpacking), the Esbit Pocket Stove is a must. It's tiny and it's simpler to use than the standard liquid fuel stove. Nice concise review with good gallery of the stove.
Travel lighter and smarter means not having to carry as much and having еще energy for doing the fun stuff. This site teaches Ты how to reduce your backpack load.