Peripherals or a better graphics card?

Solution
Regardless your peripherals right now are fantastic, I wouldn't worry about them if I were you, actually not sure what you could even possibly upgrade to.
Only thing I can see is maybe getting a Deathadder Elite, as that's my favourite mouse.
You can get peripherals later down the line, components are a much bigger investment.
This goes a little over, but is the best value in your price range.
The case you listed is poor quality, get the S340 instead.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-7700 3.6GHz Quad-Core Processor ($309.33 @ OutletPC)
CPU Cooler: CRYORIG M9i 48.4 CFM CPU Cooler ($19.88 @ OutletPC)
Motherboard: Gigabyte GA-B250M-DS3H Micro ATX LGA1151 Motherboard ($73.98 @ Newegg)
Memory: GeIL EVO POTENZA 16GB (2 x 8GB) DDR4-2133 Memory ($82.99 @ Newegg)
Storage: ADATA Premier SP550 240GB 2.5" Solid State Drive ($73.99 @ Amazon)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($69.80 @ OutletPC)
Video Card: EVGA GeForce GTX 1070 8GB SC GAMING ACX 3.0 Black Edition Video Card ($379.99 @ Newegg)
Case: NZXT S340 (Black) ATX Mid Tower Case ($65.99 @ SuperBiiz)
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply ($50.89 @ Newegg)
Monitor: Dell S2417DG 23.8" 2560x1440 165Hz Monitor ($399.99 @ Amazon)
Total: $1526.83
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-02-07 18:14 EST-0500
 
Regardless your peripherals right now are fantastic, I wouldn't worry about them if I were you, actually not sure what you could even possibly upgrade to.
Only thing I can see is maybe getting a Deathadder Elite, as that's my favourite mouse.
 
Solution


I guess your right. I might swap around some parts to squeeze in that 1080 but thanks for now