First of all yes, making a computer yourself saves you so much more money rather then buying a custom built because almost always products are overpriced. Here is the build by the way. It just over 1000 pounds but I believe this is worth it
PCPartPicker part list:
http://uk.pcpartpicker.com/list/mCwxLk
Price breakdown by merchant: http://uk.pcpartpicker.com/list/mCwxLk/by_merchant/
CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor (£293.88 @ Aria PC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£29.99 @ Ebuyer)
Motherboard: Asus Z170-A ATX LGA1151 Motherboard (£127.99 @ Overclockers.co.uk)
Memory: G.Skill Ripjaws V Series 16GB (2 x 8GB) DDR4-2400 Memory (£69.32 @ More Computers)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive (£85.97 @ BT Shop)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£45.78 @ Misco UK)
Video Card: MSI GeForce GTX 970 4GB Twin Frozr V Video Card (£199.99 @ Overclockers.co.uk)
Case: Corsair 200R ATX Mid Tower Case (£52.98 @ Amazon UK)
Power Supply: EVGA SuperNOVA NEX 650W 80+ Gold Certified Fully-Modular ATX Power Supply (£76.99 @ Novatech)
Optical Drive: Lite-On iHAS124-14 DVD/CD Writer (£12.15 @ Amazon UK)
Operating System: Microsoft Windows 8.1 OEM 64-bit (£44.00 @ Amazon UK)
Total: £1039.04
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-08-30 01:39 BST+0100