These were £49 on Amazon just over a week ago, but back up in price now. Recently £49 at John Lewis, but now out of stock. They seem to get hot on here, so hopefully this helps someone.
I just picked these up using the new customer code (I am a genuine new customer, btw! :-) ), whereby you must spend £50 to get £10 off. I think the cheapest £1 item is a facecloth.
If you use the code you get the speakers for £39 + £1 facecloth. If you don't use it, you get a well-reviewed 5.1 speaker system for £49.
Hope this helps someone!
New customer code: TDX-YGPK