Teamgroup's 2X4 GB memory @ 2666 HMz are in sales in overclockers.co.uk today only page, without the shippment charge they are £65.99.
There are two editions available, first is Xtreem and second is Froest. The picture I have used here is for Xtreem. Both editions' profile could suit with different people's taste.
Price for same brand in Amazon is £88.62 but only @ 2400 HMz.