pay particular attention to your feet, hands, and head. i don't know how cold you'll be hunting, but if you're going to be stuck in a blind, anything much under 30° will feel cold.
for your feet... start w/ some sort of liner sock - a real thin underarmour-type sock, then wool socks. 400+ gram thinsulate boot.
blue jeans, and keep a set of bibs handy.
underarmour cold gear compression fit shirt, underarmour cold gear sweatshirt (optional layer), nat gear zippered fleece (optional layer), arctic shield parka (probably the thinnest, warmest parka i have ever worn... incredible mobility).
thin, light gloves under a pair of heavier thinsulate gloves. go ahead and cut the trigger finger off the heavier pair.
for your head, on the coldest of cold days i'll wear an underarmour balaclava under a face mask knit hat. if it isn't that cold, i'll usually go sans the balaclava.
the biggest secret to keeping warm, especially for your feet, is to minimize sweating. so, never wear your hunting boots on the truck ride to your hunting area, and if you begin to sweat even a little, remove a layer of clothes. sweating, especially your feet, will make for an incredibly uncomfortable experience.