Looks like a nice rig. Actually I think that 800W is a bit overpowered for one graphic-card setup. It just eats electricity ($$$) you dont really need and 450W of a brand supplier would do it too. Some enthousiast would also say that Intel has the better processors at the moment. I myself use a Xeon 1231 E3 which has nice hyperthreading with the power of an i7 and the price of an i5. I think you could play like every game on the market. Far Cry 4 looks good, maybe you should try it out. You can also try to run the Crysis series on Ultra setting and get a graphicgasm. Crysis 1 is still the best game of the series as the story was actually a bit stringent.