Colder weather is right around the corner and so I am looking at down jackets now. Ive looked at a few of these and they seem really nice but I dont know if one is overkill or if one is not enough. I will be taking a trip to CO this Oct and could be hiking above 12000 feet. I will also use it in the mountains of NC throughout the winter. I guess the real question is how much of a down jacket do I need?