My completely unscientific punt : Temperatures will slightly above normal, but lower than we've been used to this decade. This and the relative mildness of the last few winters will lead to a public perception of winter 08/09 as a particularly cold and snowy one. There will be at least one period of heavy, wet snow in the SW which will cause widespread disruption due to melting snow and slush refreezing.
All the above is based on a secret formula that I can't reveal, obviously*. Any major newspapers looking for completely unfounded scary weather predictions can email me.
(*one part hopecasting, one part reverse psychology and a shot of projection from this Summer..)