|I think, sky use a BT telephone line.|
I suppose you could get cable, ie Virgin as a separate fibre optic.
This will cost you, because, the quoted prices usually mention in the small print you need to use their telephone line.
Contact virgin they can give you more info, but I would expect it to cost.
http://shop.virginmedia.com/broadba... for 10MB its £21/month without phone.
A thank you would be nice, if I have helped.