I am looking to build my first gaming pc in the summer. I need the monitor to be 1080p with a good response rate. It would be good if it was 24" or 23" but I would be willing to drop down to 21" for an increase in screen quality. My budget is £150 and I can probably stretch to £170 if neccesary. I am using a Sapphire HD 7950 GPU in my build if that helps.