Depends how much you want to spend and what your using them for

For basic nearfield monitoring...

If you want to buy new upto £250 these always get ok reviews as basic no frills monitors

KRK Rokit
Behringer Truth
Alesis M1

Although I would rather buy £500 speakers second hand.

Upto £500 / £600
Smaller Genelecs (8020)
Adam A5 / A7
Focal CMS

Upto £1000
Larger Genelecs
Dynaudio BM5
Neuman KH120

Depends a lot on how big your room is and what treatment you have in there. If you have £500 to spend then buy some reasonable quality second hand monitors (£300) and budget £200 for a basic acoustic tile pack.

Theres a good article here that gives an overview of 10 decent monitors under £1000

http://www.junodownload.com/plus/201...udio-monitors/