I'm in a fairly similar position, but with less snow to worry about.

Just got my 370Z and winter is fast approaching. Current plan is either those Conti's or the Michelin PS AS Plus on the 19" Rays.

More concerned about cold weather capability than snow. If it snows, the Z will be safe in the garage. Or at worst, drive through a light dusting of snow if I get caught at work.

I'm just very leery of the Bridgestones at 15 degrees F!