Castelli Estremo gloves
Castelli's Estremo gloves are a warm, windproof and very comfortable option for the cold weather.
If you don't know, I'm sure you could guess that 'estremo' is the Italian for 'extreme', and Castelli have certainly made these gloves to stand up to the cold.
The outers are made from Windstopper X-Fast fabric that does exactly what its name promises. That includes the cuffs which are plenty long enough for tucking your jersey sleeves inside to avoid getting cold wrists.