I'm going to be putting Nokian WRG2 Winter Tires ( get a great write-up £110 each ) on as soon as i get it, we live quite high up here in the North East and we always get snow due to the elavated land, last year my car was stuck on the drive for 19 days straight, good job the missus has a Vitara 4WD.
Winter tires are recommended when the ambient temp drops below 7 Deg C, and put your summer tires on next spring then store them for another 6 months.