I want to be able to run all my games on max settings "ultra" HD all that good stuff but have a very good fps, no lag. I want to be able to run the games like Tera, Crysis 3 and Archeage or Battlefield 4. What desktop would i need? I'd like to modify it down the line too. I also need a monitor that can handle all this above 25 or 26 would be nice but not too costly.