right now i'm using a VG279Q for gaming and video editing, old one was a TN 1ms 144hz, i can tell the difference between 4ms and 1ms, if it's FPS games i suggest the 1ms monitor, plus you save some money
I decided to get the IPS one because i use photoshop and sony vegas as well and i'm really enjoying IPS, but for purely gaming TN is enough and the response time will make a difference imho