If you are looking for 2.1, and if you don't mind the styling, Harman Kardon Soundsticks III are very good. If you're not keen on the styling and would prefer something else, then Edifier C2XD are supposed to be decent. Or there's B grade Acoustic Energy Aego M 2.1 speakers on the famous auction site for £60, which are being sold by AE themselves.
Another option is some stereo active speakers, such as Edifier R1600T III or 1800 for about £90.