My view on the water-proof gloves is similar to that of waterproof socks.
Chances are on your commute you'll sweat, and due to the lack of breathable material your hands/feet will just stew instead.
Id rather wet hands through a good soaking than from sweaty palms.
However, that kinda just covers the wet and not the fact that as winter progresses it get bloody cold.
My way, same as always, put on some latex gloves under your normal gloves. Yes your hands will sweat quite badly, but at least you'l be able to feel 'em.
Or ignore the bike and drive that swanky-b*****d Audi of yours.