In reply to zakmacro:
What about a winter mountaineering course with someone like Alan kimber or Martin Moran? I'd reckon it would be worth it to help learn the mountain craft type skills you need, particularly bombproof navigation in poor condition and avalanche awareness. On easy winter climbs, the actual climbing is usually the least serious part of the day; being able to stay safe in that environment is more important
Either that or more winter walking with some easy almost-scrambling eg striding edge, halls fell ridge, carn mor dearg arete, bearing in mind even these can be serious in winter; half way along the CMD arete is a long way from home if the weather turns nasty
Late in season is a good idea too, march /April can still have a lot of snow and much longer daylight hours
Worth the effort though, my best days in the hills have all been in winter...
Cheers
Gregor