Looking for suggestions on a decent monitor

[Michael Q]

Budget is probably at £250 maximum
I mainly use it for gaming and my Specs are:
Gpu: MSI gtx 960 4gm VRAM
Cpu:Intel i5-4450 3.20 GHz
RAM: 8GB

I've been using the same monitor/TV for the last 9 years when i first built a PC so i really have no idea on what to look out for so any suggestions would be greatly appreciated.

 

[Michael Q]

Basically anything new that comes out and catches my eye like vermintide lately, playing witcher 3 with some small end games like the odd league of legends game as well as skyrim/fallout