Re: GPS, it's a really neat tool but it's NO substitute for map & compass + actual navigation skills. I've personally witnessed a situation (and heard of several verified stories) when the GPS malfunctioned and ran out of batteries at the worst possible time. If that happens and you can't find your way out with a map and compass you're screwed, for lack of a better word.

Especially for novice hikers I think it's very important to keep it simple, down to the basics. Learn the basic skills first. Depending on gadgets is a really bad idea out in the wilderness where so many things can go wrong unexpectedly.