What do you plan on using them for?
I have a pair of Edifier BT1700's which were an impulse buy @ 130 quid. They are quite good (a little boomy in the bass... but if I turn the bass to 11 o'clock and the treble to 1 o'clock they do quite well).
I initially used them to listen to a TV through and they filled up a big living room very well in that role.
They are good as computer monitors... however, I wouldn't have paid any more than I did for them.
Edifier is a decent brand and they have just come out with a pair of £700 monitors (S300RPO) which, considering the competition, would seem like a hard sell to me.
If you get them from Amazon you could always sent them back if they are not to your taste?