Are all of these components compatible with each other?

Solution
Yes, not exactly ideal on some of it. Partpicker tends to take care of compatibility.

Minor changes:
Slightly better power supply, 80+ Bronze instead of 80+ and 50 more watts.
1866 memory with a CAS of 9 rather then 2133 with a CAS of 11
Better motherboard for overclocking.
Aftermarket CPU cooler
Dual band WiFi rather then single band (allows more options)

PCPartPicker part list: http://uk.pcpartpicker.com/p/ByQWmG
Price breakdown by merchant: http://uk.pcpartpicker.com/p/ByQWmG/by_merchant/

CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor (£250.44 @ CCL Computers)
CPU Cooler: Noctua NH-U9B SE2 37.9 CFM CPU Cooler (£42.94 @ Ebuyer)
Motherboard: ASRock Z97M Pro4 Micro ATX LGA1150 Motherboard (£78.00 @ More Computers)
Memory...
500w is pushing it, I would go for 550w to have more wiggle room.

i7 is good for video encoding and cpu intenisve programs but does not help you at all for gaming only rig, if gaming only then an i5 would be a better use of funds. Can then get a better gpu or SSD with the savings.

Would suggest using ethernet cable or powerline adapter for gaming over wifi. Out of the three, WiFi has the slowest latency (longest delay).
 

Eximo

Titan
Ambassador
Yes, not exactly ideal on some of it. Partpicker tends to take care of compatibility.

Minor changes:
Slightly better power supply, 80+ Bronze instead of 80+ and 50 more watts.
1866 memory with a CAS of 9 rather then 2133 with a CAS of 11
Better motherboard for overclocking.
Aftermarket CPU cooler
Dual band WiFi rather then single band (allows more options)

PCPartPicker part list: http://uk.pcpartpicker.com/p/ByQWmG
Price breakdown by merchant: http://uk.pcpartpicker.com/p/ByQWmG/by_merchant/

CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor (£250.44 @ CCL Computers)
CPU Cooler: Noctua NH-U9B SE2 37.9 CFM CPU Cooler (£42.94 @ Ebuyer)
Motherboard: ASRock Z97M Pro4 Micro ATX LGA1150 Motherboard (£78.00 @ More Computers)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory (£60.77 @ Ebuyer)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive (£35.94 @ Aria PC)
Video Card: EVGA GeForce GTX 970 4GB ACX Video Card (£265.16 @ Scan.co.uk)
Case: Corsair SPEC-01 RED ATX Mid Tower Case (£36.35 @ Aria PC)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply (£46.35 @ Amazon UK)
Wireless Network Adapter: Asus PCE-N15 802.11b/g/n PCI-Express x1 Wi-Fi Adapter (£15.79 @ Scan.co.uk)
Case Fan: Arctic Cooling Arctic F12 PWM 57.0 CFM 120mm Fan (£5.40 @ Amazon UK)
Case Fan: Arctic Cooling Arctic F12 PWM 57.0 CFM 120mm Fan (£5.40 @ Amazon UK)
Case Fan: Arctic Cooling Arctic F12 PWM 57.0 CFM 120mm Fan (£5.40 @ Amazon UK)
Case Fan: Arctic Cooling Arctic F12 PWM 57.0 CFM 120mm Fan (£5.40 @ Amazon UK)
Total: £853.34
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-09-24 17:53 BST+0100
 
Solution