Just ordered a brand new SKY HD box from www.pennineplus.com
Authorised SKY dealer.
If you have SKY+ already,the box just switches over,so no need for a £60 install.
Same wiring etc.
Then it's just a case of calling SKY and getting them to upgrade your card down the line.
Piece of proverbial.
I'm afraid there's no way of avoiding the £10 a month for HD subscription,but at least you've saved £99 on the box itself.
The box price was always the stumbling block for me,not the sub.