Open Question: im going hiking in colorado, which of these things do i not need to take?

my backpack cannot fit any more items, which of these are least neccisary? i dont think i can do with out most of them but i have never really camped befor and i dont know what i will be needing. heres what i have. which can i get rid of?
water bottles
a powerdrill
1000 count box of matches
camping food
sandpaper to rub together to heat food
fire wood
a stick to hunt bears or fish with
bug spray
ipod
knife
test tubes
spork
chewy bars
book if i get bored
baseball catchers mask
emergency first aid kit
GPS
hammer
tent
snacks
walke talkie
circular saw (cordless obviously)
spare batteries
fish food to catch fish
fishing pole
fishing net
rain poncho
gloves
sun glasses
sun screen.

thanks also anything i dont have here that u think i need please let me know

Source:
http://answers.yahoo.com/question/index?qid=20110706195218AALRqJy

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