Crystal ski have 1 week self catering ski holidays for £128 per person based on 4 sharing a 1 bed apartment on 26th March 2011.
Total price for a family of 4 +£513 ( may be some extra charges for credit card etc.) Includes transfers and 20kg luggage
I have checked out lift pass prices and they are 155 euros for a 6 day adult pass or a family pass is 551 euros for 2 adult and 2 kids (upto 17years old)
Ski hire through alpinresorts.com is just over 50 euros for adults and just over 30 euros for kids when you use the discount code NEWS133
Possible 2.5% cashback through Quidco
Link appears to be broken see post 2 for links