Hi i am getting into winter camping and was wondering what some good bags are? I am planning on doing a trip to Alaska in a few years for a week long winter trek. I was looking at a few bags here they are the first one is a kelty foraker 0 degree http://www.feedthehabit.com/gear/bcstore...egree_Down.html

this one is a north face Solar Flare -20

http://www.rei.com/product/732776

If these bags are not good can u tell me what ones are? Also what kind of cooker would u guys use for winter camping?
I am using a eureka k-2 tent wich works great