Perfectly Frank wrote in post #17564401
Maybe look for a system with a lesser cpu and ram, and put more into a higher graphics card.
I want to add that as far as gaming goes, there is no difference between the i5 4690K and i7 4790K, the i5 lacks hyper threading but it also costs a lot less. Games do not use more than 4 cores/threads.
16GB is plenty and do try to fit a GTX 980 in there. You will not need more than a 750w power supply, in fact I expect the system to use less than 400w of power even under load, but you want to try and keep power supply wattage about twice that of the draw for best efficiency and longevity. Make sure the supply is made by EVGA, Seasonic or Corsair, they make some very good PSUs for the money. Choice of RAM and motherboard don't matter much, unlike 10+ years ago, they have no say in the computers performance.
And of course an SSD for the boot drive (preferably Intel) and an HDD to store games on, they're getting big so you may want a 3TB drive.
Edit: This is kind of a personal point, but you may want to get a nice mouse and mechanical keyboard if the budget allows, the Logitech G502 is arguably the best mouse out right now at around $57 and a keyboard like the CM Storm Quickfire is $90, preferably with Cherry Red or Brown switches and not Blue. Part of the experience after all is how you interact with the darn thing.