16GB of ram is overkill. Stick with dual channel 8GB of ram. Also, get a better quality power supply since you are gaming. Refer to this link for more information on choosing better quality power supplies: http://www.tomshardware.co.uk/forum/id-2547993/psu-tier-list.html. Otherwise, your build is solid and will run the games you play at 1080p on ultra settings with at least 60 FPS.