man, good luck. Gloves/mittens have always been my cross to bear -- cold and wet is pretty much the only experience with gloves I've ever had, and I try out several pairs a year. I have unusually cold hands.
I do have a pair of OR mitts which stay fairly warm and dry, but I can't do anything with my hands when I'm wearing them. And my hands take a long time to warm up, so if I take them off to do something, my hand is cold again forever.
I hope you find something that works.