I'm in Boston (Cambridge actually) right now and figuring out winter clothing. I had my heart set on finding a good duffel coat and was advised to get a darker color such as charcoal or dark grey over light tan. However, I also thought to get a peacoat. I was wondering, however, whether a peacoat is warmer than the usual overcoat, and if there are times when you'd wear one but never the other. Finally, I'm advising the African foreign students how to grab winter clothes cheap. Given their complexion, I was thinking that peacoats would look great on them, but was hoping for advice on how to get them cheap.