I'm relocating to Portland, OR in the near future and am in the process of researching sleeping bags. I've been upgrading my equipment to shave as much weight as possible. I would really like to get a down bag because they are so much lighter and compressible. I don’t think I’ll have a problem keeping it dry in my pack if I wrap it in a waterproof bag of some sort. Does anyone disagree with a down in a wetter environment? Any opinions?

Also, if anyone hikes throughout Oregon, what is your sleeping system compiled of? Or any recommendations?