First Build Need Help

[arizonadanger]

I am trying to get a gaming pc set up, where can also stream/record and edit videos. So far I have

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor ($369.99 @ Newegg)
CPU Cooler: Thermalright Macho Rev.B 73.6 CFM CPU Cooler ($54.90 @ Amazon)
Motherboard: Asus Z170 PRO GAMING ATX LGA1151 Motherboard ($165.98 @ Newegg)
Memory: Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-3000 Memory ($149.89 @ OutletPC)
Storage: Samsung 850 EVO-Series 500GB 2.5" Solid State Drive ($169.89 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.66 @ SuperBiiz)
Video Card: EVGA GeForce GTX 980 Ti 6GB HYBRID Video Card ($714.99 @ SuperBiiz)
Case: Fractal Design Define R5 Blackout Edition w/ Window ATX Mid Tower Case ($91.99 @ SuperBiiz)
Power Supply: EVGA SuperNOVA P2 850W 80+ Platinum Certified Fully-Modular ATX Power Supply ($146.66 @ Newegg)
Operating System: Microsoft Windows 10 Pro OEM (64-bit) ($129.99 @ SuperBiiz)
Monitor: Asus ROG SWIFT PG278Q 144Hz 27.0" Monitor ($639.00 @ Amazon)
Total: $2670.95
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-10-29 02:21 EDT-0400

I would love it if someone looked this over and let me know if there was a way to make it a little cheaper without ditching quality and also of course help with anything that seems like it won't work right.

 

[RababNoor]

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor ($369.99 @ Newegg)
CPU Cooler: CRYORIG H7 49.0 CFM CPU Cooler ($34.50 @ Newegg)
Motherboard: Gigabyte GA-Z170X-Gaming 5 ATX LGA1151 Motherboard ($154.99 @ Micro Center)
Memory: Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-2400 Memory ($96.99 @ Newegg)
Storage: Samsung 850 EVO-Series 500GB 2.5" Solid State Drive ($174.18 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.66 @ SuperBiiz)
Video Card: MSI GeForce GTX 980 Ti 6GB Video Card ($659.99 @ B&H)
Case: Fractal Design Define R5 Blackout Edition w/ Window ATX Mid Tower Case ($91.99 @ SuperBiiz)
Power Supply: EVGA SuperNOVA P2 850W 80+ Platinum Certified Fully-Modular ATX Power Supply ($146.66 @ Newegg)
Operating System: Microsoft Windows 10 Pro OEM (64-bit) ($129.99 @ SuperBiiz)
Monitor: Asus ROG SWIFT PG278Q 144Hz 27.0" Monitor ($639.00 @ Amazon)
Total: $2535.94
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-10-29 03:03 EDT-0400

 

[arizonadanger]

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor ($369.99 @ Newegg)
CPU Cooler: CRYORIG H7 49.0 CFM CPU Cooler ($34.50 @ Newegg)
Motherboard: Gigabyte GA-Z170X-Gaming 5 ATX LGA1151 Motherboard ($154.99 @ Micro Center)
Memory: Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-2400 Memory ($96.99 @ Newegg)
Storage: Samsung 850 EVO-Series 500GB 2.5" Solid State Drive ($174.18 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.66 @ SuperBiiz)
Video Card: MSI GeForce GTX 980 Ti 6GB Video Card ($659.99 @ B&H)
Case: Fractal Design Define R5 Blackout Edition w/ Window ATX Mid Tower Case ($91.99 @ SuperBiiz)
Power Supply: EVGA SuperNOVA P2 850W 80+ Platinum Certified Fully-Modular ATX Power Supply ($146.66 @ Newegg)
Operating System: Microsoft Windows 10 Pro OEM (64-bit) ($129.99 @ SuperBiiz)
Monitor: Asus ROG SWIFT PG278Q 144Hz 27.0" Monitor ($639.00 @ Amazon)
Total: $2535.94
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-10-29 03:03 EDT-0400

In your opinion, is there a big difference between using i7 opposed to an i5 processor? Someone told me that is wouldn't make much difference for gaming, but I figured i7 was probably better for running multiple harsh programs at once.

 

[-HH-]

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor ($369.99 @ Newegg)
CPU Cooler: CRYORIG R1 Ultimate 76.0 CFM CPU Cooler ($89.99 @ Newegg)
Motherboard: Gigabyte GA-Z170X-Gaming GT ATX LGA1151 Motherboard ($299.99 @ Newegg)
Memory: Avexir Core Series 16GB (2 x 8GB) DDR4-2400 Memory ($87.99 @ Newegg)
Storage: Samsung 850 EVO 250GB M.2-2280 Solid State Drive ($87.89 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.66 @ SuperBiiz)
Video Card: MSI GeForce GTX 980 Ti 6GB Video Card ($636.98 @ Newegg)
Case: Corsair 760T Black V2 ATX Full Tower Case ($139.99 @ Micro Center)
Power Supply: XFX XTR 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($90.00 @ SuperBiiz)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($89.88 @ OutletPC)
Case Fan: Corsair CO-9050016-RLED 52.2 CFM 120mm Fan ($17.98 @ OutletPC)
Monitor: Asus ROG SWIFT PG278Q 144Hz 27.0" Monitor ($659.99 @ SuperBiiz)
Other: BitFenix Alchemy Connect™ 15 LED Light Strip - 300mm - Red (BFA-ACL-30RK15-RP) ($21.99)
Total: $2610.32
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-10-29 05:55 EDT-0400

An i7 in a gaming situation won't have a mega difference over an i5 but when it comes to CPU intensive tasks then the i7 begins to shine