Olympia Phantom One-Piece in Neon Yellow. Broke it out today for the first time this season. Temps in the DC area were just rising above freezing and I was just a touch nippy without the liner. Plus, you can be seen from outer space. With the liner in place, I have ridden for several hours in the teens with no problems--except that elimination of bodily fluids when wearing a one-piece is always a finely choreographed event.
As an added benefit, the Olympia allows you to wear your office garb underneath. No time-consuming and sometimes awkward costume changes are required once you cross the threshold to your cubicle/office/meeting/coronation (pick one). Step out of the suit and you are ready to resume your rightful place as a Master of the Universe.
For hands, I cannot recommend Hippo Hands highly enough. They are VStrom hanguards on steroids.