Personal safety equipment, like crampons and an axe are an individual decision. To make the proper decision, you need experience with the particular circumstances you are about to run into.
I am the chicken of the hills, I put fangs on early, take'm off later than most. I am a fairly good judge of what I am going need to haul up that hill based on reports and what see from the trailhead.
Leave your things at Trail Camp, the larcenous usually don't like hard...and it is hard hauling 35-40# downhill. With that said, I would not leave any expensive electronics hanging around...GPS, iPod, etc.
