For under £800, could this be improved?

[Matt582]

I'm helping my friend build a computer and he as around £800 to spend. This is what I've come up with so far:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6500 3.2GHz Quad-Core Processor (£164.28 @ Aria PC)
Motherboard: ASRock H170A-X1/3.1 ATX LGA1151 Motherboard (£70.09 @ Amazon UK)
Memory: Kingston HyperX Fury Black 16GB (2 x 8GB) DDR4-2133 Memory (£55.09 @ More Computers)
Storage: Samsung 850 EVO-Series 120GB 2.5" Solid State Drive (£52.75 @ Amazon UK)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive (£37.98 @ Novatech)
Video Card: MSI GeForce GTX 970 4GB Twin Frozr V Video Card (£259.99 @ Amazon UK)
Case: CiT Vantage ATX Mid Tower Case (£33.48 @ Ebuyer)
Power Supply: Corsair CX 600W 80+ Bronze Certified Semi-Modular ATX Power Supply (£66.48 @ CCL Computers)
Operating System: Microsoft Windows 10 Home OEM (64-bit) (£71.81 @ More Computers)
Total: £811.95
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-05-22 20:18 BST+0100

What could be changed to make this better? (The case is the case he currently has so he could get a different one if this stuff doesn't fit.)

Thanks

 

[Rabmac]

Slightly cheaper but has Seasonic PSU and better case: PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6500 3.2GHz Quad-Core Processor (£164.28 @ Aria PC)
Motherboard: ASRock H170A-X1/3.1 ATX LGA1151 Motherboard (£70.09 @ Amazon UK)
Memory: Kingston HyperX Fury Black 16GB (2 x 8GB) DDR4-2133 Memory (£55.09 @ More Computers)
Storage: Samsung 850 EVO-Series 120GB 2.5" Solid State Drive (£52.75 @ Amazon UK)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive (£37.98 @ Novatech)
Video Card: Zotac GeForce GTX 970 4GB Video Card (£236.28 @ Aria PC)
Case: Zalman Z11 NEO ATX Mid Tower Case (£39.99 @ Amazon UK)
Power Supply: SeaSonic S12II 620W 80+ Bronze Certified ATX Power Supply (£59.32 @ Amazon UK)
Operating System: Microsoft Windows 10 Home OEM (64-bit) (£71.81 @ More Computers)
Total: £787.59
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-05-22 20:21 BST+0100