Looking for an upgrade from 19inch monitor

  I’m looking to upgrade my monitor from a 19 inch to at least a 22 - 27 inch lcd. I expect to be playing all the newest games, do some photo shop editing and watching tv and movies on it also. Looking for thoughts on dual screen 22’s or single 27 inch??
  Anyone got any suggestions to help save me some time on research. Any recommendations would be greatly appreciated based on user experience.

new glasses?