Knobbies are gold, studs only help on ice. Slick? you betcha, but fun, too. You REALLY have to pay attention, one slick spot will put the hurt on you. In snow, without momentum, you walk. The technique is to STAY SEATED for traction, let the front go where it needs to and get used to guiding the bike in a general direction, sometimes you can't "turn" corners.

Dress for the Temp's and you can ride in most stuff, Me an Nenninger did a ride on the ice off of credit island in 5 degrees last year.

(Yeah, me and nenningers looong legs on credit island...)