As I posted before we here in upstate NY see Nokians often enough. Of course there are a fair number of road rallyists among my friends and we run in winter as much or more than we do in summer. Been aware of Nokians since the mid-80's and I can even pronounce Hakkapeliitta correctly (it's OK just to say "hakka's").
As for playing around with tire pressures, do so very carefully and only after you have checked to see if the tires you have will cope with it. Not all tires are created equally. I have seen people lower the pressure and then had the bead pop off the rim. I have seen people leave the pressure so low that the tires wore out quickly. Doing stuff without knowing what it's all about is often not a good idea.
To repeat what's been posted before, attitude is very important. You'll go off for sure if you drive like it's warm and dry or like you've got a right to drive as fast as you want no matter what or who is on the road. Just keep the speed down, keep a farther distance between cars (both in front of and behind you), do things gently, and practice, practice, practice. Remember too that good equipment gives you an edge. One more time since it's the #1 rule in my book of winter driving -- just 'cuz you kin git a-goin' doesn't mean you can haul thing darned thing in once you want to stop or make to turn.
