Osprey, I stopped in at one of the Cabela's stores this spring when I was back east visiting family, and picked up a pair of the Dry Plus waders. I've fished them pretty hard this summer, and really like 'em so far. The neoprene foot is comfortable, but is relatively thin (3mm, I think). No problem for summer fishing, but I'll definitely use a pair of neoprene socks this winter. I usually buy my boots a full size or two bigger with stocking foots, and as a general rule larger is better. Boots that are too tight cut off circulation to your feet, and will make for a MISERABLE day of winter fishing!
Greg