Current Gaming Build - Upgrades

[LucaFire]

PCPartPicker part list / Price breakdown by merchant

So this is my current gaming build and I have a $300 budget. I was wondering whether you guys could recommend anything useful for the build within that budget?

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($224.95 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($24.88 @ OutletPC)
Motherboard: MSI Z97-GAMING 5 ATX LGA1150 Motherboard ($144.88 @ OutletPC)
Memory: Corsair Vengeance Pro 16GB (2 x 8GB) DDR3-1866 Memory ($69.99 @ Newegg)
Storage: Samsung 850 EVO-Series 500GB 2.5" Solid State Drive ($151.89 @ OutletPC)
Storage: Hitachi Deskstar 7K2000 2TB 3.5" 7200RPM Internal Hard Drive
Video Card: MSI GeForce GTX 970 4GB Twin Frozr V Video Card ($324.99 @ B&H)
Case: Fractal Design Define R4 w/Window (Black Pearl) ATX Mid Tower Case ($109.99 @ SuperBiiz)
Power Supply: SeaSonic 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($111.99 @ SuperBiiz)
Optical Drive: LG GH24NSC0B DVD/CD Writer ($15.89 @ OutletPC)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($87.95 @ OutletPC)
Monitor: Acer GN246HL 144Hz 24.0" Monitor ($207.58 @ Newegg)
Total: $1474.98
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-02-08 13:41 EST-0500

http://pcpartpicker.com/p/6DGWxr

 

[RCFProd]

If you like the aesthetics, individually slaved cables that matches the color of your build. Bitfenix and lot more brands sell cables like this. Aftermarket case fans, like Corsair SP. A fan controller to control fan speeds, for example NZXT Grid+. Perhaps also the NZXT Hue if you like LEDs? Performance wise your build seems fine! Perhaps you could improve your peripherals? Mouse/keyboard or headset?

 

[CelicaGT]

For $300 I don't think there is any meaningful step up from where you are...that's a pretty solid build.

(edit) Of course like RCFProd mentioned, aesthetics....I prefer black on black with varying shades of black....flat black preferably, really makes the black stand out more ;P

 

[Mac070]

But another gtx 970 for sli! Lol only if you need to . But everything is fine here . Water cooler wouldn't be a bad choice . Nzxt kraken X61 . Buy an extended mouse mat .

 

[LucaFire]

Thanks for your advice, guys!