Hi, welcome to the DJU Forums and Happy New Year.
Numark aren't a bad choice and as Chris has already mentioned, you can't go far wrong with either Technics or Vestax, although a pair of these will take you a few hundred £££'s above your budget.
Whatever your decision always go for Direct Drive turntables, far more flexibility. Belt Drive are little more than nice looking Hi-Fi turntables and off little use to the DJ!.
If you are interested, I still have a couple of Gemini Scratchmaster 4.0 Packages available, left over from the Xmas Offers. These are the standard pacakge, but have been upgraded with the higher Spec XL500 Turntable.
You can find details of the offer
HEREAnd the XL-500 Turntable spec
HERE