In PA, we'll see some temps in the 20's by the end of archery season. For that kind of cold here is what I wear.

UA cold gear base layers.
Polartec Classic fleece for a second layer.
Cabelas Wool fatique sweater. (I bought it with the Windshear lining, found it too noisy and cut it out with a pair of scissors)
Rocky heavy weight fleece vest.
Grey Wolf Woolens wolfskin jacket and pants with Comformax windproof lining.
2 pair of woolrich wool socks
UA Cold Gear balaclava

A WARM HAT - I don't care what you do, if your head isn't warm, you're going to be cold. Most heat escapes from your noggin.

Chemical Handwarmers. One under the hat, two in my handwarmer pocket. I just used two in a thermacare wrap type thing on my kidneys the other day and it really worked great.