First time PC builder in need of help!

[SDRider]

Hi, I've played PC for quite a while now but have never considered undertaking the task of building my own computer until now.
I want to build a mid range gaming PC with a GTX 970 and probably an i5 4690k processor but I'm not 100% on my choices.
I want to hopefully keep it below the £700/800 all together if possible but can possibly stretch a little bit
Any advice on parts, components and monitors would be brilliant thanks!

 

[CTurbo]

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4460 3.2GHz Quad-Core Processor (£140.15 @ Amazon UK)
Motherboard: ASRock H97 PRO4 ATX LGA1150 Motherboard (£68.36 @ Scan.co.uk)
Memory: Kingston Savage 8GB (2 x 4GB) DDR3-1600 Memory (£35.57 @ CCL Computers)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive (£33.98 @ Aria PC)
Video Card: EVGA GeForce GTX 970 4GB SSC ACX 2.0 Video Card (£264.98 @ Amazon UK)
Case: Cooler Master N300 ATX Mid Tower Case (£33.70 @ Aria PC)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply (£49.98 @ Novatech)
Operating System: Microsoft Windows 8.1 OEM (64-bit) (£74.99 @ Amazon UK)
Total: £701.71
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-08-25 00:25 BST+0100