Welcome to London! Hope you find enough skiing to keep you happy.
) fly to Chambery which is good for the French Alps (Val d'Isere, Meribel etc).
Alternatively if you go for a week you may get a very cheap charter seat. Look in the travel sections of the weekend broadsheets for ads.
The all-night Eurostar is a good option if you don't want to sleep (no bunks or anything - just 13 hours in a train seat). However it's more expensive than flying.
Ski Weekend are very expensive - I nearly went for a w/e with them in December & ended up going for a week because it was cheaper...
Most Italian resorts are a long transfer from Turin. To find out about transfer times, resort locations etc look at one of the big package operator's brochures (e.g. www.crystalski.co.uk
Have you learnt about the 'London' airports yet? Most cheap flights go from Luton or Stanstead, neither of which would anyone sane consider actually to be in London. Some (Easyjet in particular) go from Gatwick (also 35 miles away from London) and none will go from Heathrow. If, like me, you live in SW London it's a good two hours journey to Stanstead.