The Grenade Safety Marshall gloves are great gloves. The keep your hands warm and the sip off mitten is a great idea. It makes it a lot easier to reach in your pockets and control your ipod, etc... They look pretty cool also.
The white ones can get pretty dirty in a hurry though. I probably should have bought the olive green or black. Also, the material is not terribly waterproof. Good for a nice powder day, but they can get pretty soggy after a warm, kinda wet day.
Overall I say get them!