This deal (prev 733 degrees!) has been resurrected, albeit briefly - ends midnight Monday I think.
1.5% quidco (50p!)...I hope it's good as I've ordered one...enjoy!
I should say I am a fan of logitech stuff, seems solid and good sound. I looked at the successor (Z506) and while both were getting good ratings, the satellites on the Z506 are 2-way speakers (rather than 2 x the same driver) but they don't have mounting brackets built in (although the central speaker has a really clever bracket to clip to the top of your TV). Otherwise it appears they are more or less the same (70W v 75W).
I think the cables on this set-up are a little short but the spec is not on the Logitech site and I CBA looking through the older threads!
Delivery only it seems....