Hey there,
Suiting up for winter paddling here, our kit is fairly similar. I'm in a Kokatat GFER drysuit (with relief zipper), booties integrated with the suit. Underlayers usually consist of an NRS Hydroskin, with a Kokatat fleece top. Level Six or NRS neoprene shorts and neoprene tights (3-5 ml, depending on the temp), wool socks, layered with a neoprene sock, then the drysuit and an NRS 5 ml neoprene bootie over that. Some sort of dense weave wool cap, or on really cold days, a balaclava (the hood, not the Greek phyllo dough pastry), then the hat.
We've had great results with the NRS Toaster Mitts, as well as the O'Neill and Dakine mitts. They're only 3 ml., but my hands actually sweat in them, right down to 12-14 degrees. I might experiment with some sort of liner to soak up the excess moisture, but the dexterity is pretty darn good as it stands, and if you come out of the boat, you have some hand protection, unlike pogies, to remount.
www.nrsweb.com/shop/product.asp?pfid=24472
www.oneill.com/#/men/europe/collection/m...mitt_gloves_1/black/
www.dakine.com/p/gloves/windsurf-kite/20.../cold-water-neo-mitt