We have just recieved stocks of the new Gerbings G3 heated gloves. I love these, super comfy and toasty warm.
They heat the sides of each finger and the back of the hand and have a lifelong warranty against any faults with the heating elements. Great value for money and available in all sizes.
They come with all the wiring needed to connect them to your bike and also an on / off switch. (these get very hot so you need to turn them off from time to time).