mine are from thenorthface.com and they're wonderful. anything that has a tongue like these (open area near the ankle) won't keep snow out completely, and a wet foot is a cold foot.
@aerochickie21 both styles 1 and 2 are waterproof according to their websites and reviews I have found. They both have the rubber bottoms that wrap over the toes and up to the heels. The 3rd ones are water resistant, but may not be the best is slushy snow