Is this a good build for a gaming PC? Please tell me what I should change.

[sonicstormgaming]

CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor ($279.99 @ Micro Center)
CPU Cooler: Cooler Master Hyper 212 Plus 76.8 CFM Sleeve Bearing CPU Cooler ($19.99 @ Newegg)
Motherboard: Asus Z97-A ATX LGA1150 Motherboard ($137.99 @ NCIX US)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory ($79.99 @ Amazon)
Storage: Samsung 840 EVO 250GB 2.5" Solid State Drive ($128.98 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($54.98 @ OutletPC)
Video Card: EVGA GeForce GTX 980 4GB Superclocked ACX 2.0 Video Card ($569.99 @ Amazon)
Case: Corsair 450D ATX Mid Tower Case ($99.99 @ Newegg)
Power Supply: Corsair CX 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($59.99 @ Newegg)
Optical Drive: LG WH16NS40 Blu-Ray/DVD/CD Writer ($54.99 @ Amazon)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($89.98 @ OutletPC)
Monitor: BenQ XL2420Z 144Hz 24.0" Monitor ($329.99 @ Newegg)
Keyboard: Corsair K70 RGB Wired Gaming Keyboard ($169.99 @ Amazon)
Mouse: Corsair M65 RGB Wired Laser Mouse ($66.77 @ Amazon)
Total: $2143.61

 

[MasterDell]

At that price range for a monitor I highly suggest looking into 1440p ones: http://www.newegg.com/Product/Product.aspx?Item=N82E16824009626&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=

parts all look good to me. Just the PSU needs a swap: http://pcpartpicker.com/part/seasonic-power-supply-s12ii620bronze or http://pcpartpicker.com/part/evga-power-supply-220g20750xr

You could also SLI a 970 in that budget but if you want to upgrade in the future I would stick with the build you have right now.

 

[barto]

The only thing I would change is the PSU.

PCPartPicker part list / Price breakdown by merchant

Power Supply: Antec High Current Gamer 620W 80+ Bronze Certified Semi-Modular ATX Power Supply ($79.98 @ OutletPC)
Total: $79.98
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-10-25 21:50 EDT-0400

Or

PCPartPicker part list / Price breakdown by merchant

Power Supply: SeaSonic 650W 80+ Gold Certified Semi-Modular ATX Power Supply ($92.98 @ SuperBiiz)
Total: $92.98
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-10-25 21:52 EDT-0400

 

[Tinkmaster Overspark]

The benefit of staying at 1080p with that 144hz monitor is that the GTX 980 will be able to push that high frame rate very well for that resolution. If you go to 1440p and want 144hz, the monitor is more expensive and that single 980 wont actually manage to hit the higher frame rates. Just food for thought, take what you personally value in monitors and apply it to your build. Personally i'm getting a 144hz 1440p monitor with g-sync but its incredibly expensive lol