For me, "waterproof" gloves are sort of like unicorns - I haven't seen any real ones in this lifetime. The super pricy high tech gloves fall short IMO and still get soggy. The cheapo rubber products will not breathe and your hands will still be saturated with sweat.
Here's my take:
If it is wet outside, it must be 30 degrees F or above, so freezing skin isn't really an issue. IMO, empbrace the wetness on your hands and go with neoprene or Merino wool - you'll get a wetsuit effect that will keep your fingers relatively comfy and you'll have more "feel" than with bulky, wet ski gloves or lobster claws.

Once it gets cold enough that it is snowing (dry snow, not wet glop) or sleeting, waterproofness isn't quite as much of an issue. That's when I break out the thicker gloves. I've used mountaineering/ski gloves and bike specific gloves and find at a certain level of quality they are pretty comparable for fit, feel/dexterity and warmth.

On a completely different track, winter handlebar / hand covers such as those used by the ATV/scooter/super cold weather bike commuter crowd, such as these http://www.scootercrazy.com/acatalog...ar_Covers.html might provide enough water resistance to keep your regular gloves relatively dry.