Help with my first build. Around £1000 budget

dottorrent

Honorable
I wouldn't recommend the Venom Voodoo. It just isn't well made or refined.

Plus, why go super-basic with the Z97 chipset? It can't overclock that well and features are pretty barebones compared to others.

Here's a similar build -

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor (£174.00 @ Amazon UK)
CPU Cooler: be quiet! Shadow Rock Slim 113.8 CFM Rifle Bearing CPU Cooler (£32.29 @ Amazon UK)
Motherboard: MSI Z97S SLI Krait Edition ATX LGA1150 Motherboard (£87.56 @ Scan.co.uk)
Memory: Kingston Fury Black Series 16GB (2 x 8GB) DDR3-1600 Memory (£96.05 @ Amazon UK)
Storage: Sandisk Ultra Plus 128GB 2.5" Solid State Drive (£48.96 @ Dabs)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive (£56.34 @ Aria PC)
Video Card: EVGA GeForce GTX 970 4GB Superclocked ACX 2.0 Video Card (£273.59 @ Aria PC)
Case: Fractal Design Define R4 (Black Pearl) ATX Mid Tower Case (£72.48 @ Aria PC)
Power Supply: Antec High Current Gamer 620W 80+ Bronze Certified Semi-Modular ATX Power Supply (£64.46 @ Amazon UK)
Optical Drive: Asus DRW-24F1ST DVD/CD Writer (£18.03 @ Amazon UK)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) (£74.34 @ Aria PC)
Total: £998.10
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-03-28 18:45 GMT+0000

Better quality PSU, more feature-packed board, an SSD (in sacrifice of 1TB of HDD space), a CPU cooler which is just as good and quieter at the same time and a higher quality case.
 

What's wrong with the Antec power supply? I'm pretty sure the High Current ones are manufactured by Seasonic, and what is "Reddit's Microsoft Software Swap"?