Try -
CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor (£178.00 @ Amazon UK)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£24.98 @ Novatech)
Motherboard: ASRock Z97 EXTREME4 ATX LGA1150 Motherboard (£109.16 @ Scan.co.uk)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1866 Memory (£44.50 @ CCL Computers)
Storage: Seagate 2TB 3.5" 7200RPM Hybrid Internal Hard Drive (£74.64 @ Scan.co.uk)
Video Card: MSI GeForce GTX 970 4GB Twin Frozr V Video Card (£265.99 @ Aria PC)
Case: Corsair Graphite Series 230T Black ATX Mid Tower Case (£58.01 @ More Computers)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply (£46.18 @ CCL Computers)
Operating System: Microsoft Windows 7 Home Premium SP1 OEM (64-bit) (£67.95 @ Ebuyer)
Monitor: Asus VE248H 24.0" Monitor (£135.85 @ CCL Computers)
Total: £1005.26