I've used Gerbing gloves and socks down to 27f ambient. Also have Gerbing jacket and pants liners. If you intend to try to ride through the winter, man do the electrics! It makes a world of difference! I have 5 pairs of gloves and when the temp gets below 40, the Gerbings are it! They're the warmest gloves you'll find even before you turn them on. The socks are warm enough that I rarely use them because they get too hot (I only have a single rheostat wired for both socks and gloves, I need the 2-line that's available). As for wiring them in, it's simply hooking the provided connector to the battery. They come with an on-off switch, but a 'heat troller' (another $$$ item) is the way to go. The gloves have a waterproof liner so when it rains, they get pretty heavy with water, but it doesn't come through.
Yes, the stuff's not cheap, but when your fingers and toes are toasty on a bone freezing day, you'll know they're worth it.
