I'm going on my first hunt this fall in the Sierra's of California and am trying to figure out what I need to buy that I don't have yet. I'm sure there are tons of things I could buy, but as I am just graduating from school, the paychecks aren't coming in just yet and so I need to keep the list short and fairly cheap. I have the gun, but after that I really don't have much. I know I need some binoculars, and some orange, but after that I have a lot of questions. How important do you feel the following things are?

Range Finder
Camo raingear (mil surplus vs. designed for hunting)
Scent blocker

And anything else I'm missing. If I have to focus most of my money on one of these things I don't have, what should it be. Thanks for the help, all.