New build - please check for me

[Cullhaven]

My basket at Overclockers UK:

• 1 x OcUK Kinetic Z1 - Intel Z170 Configurable Skylake DDR4 Gaming PC = £848.89
  • Case:Kolink Aviator Midi Tower Gaming Case - Black
  • Processor:Intel Core i5-6500 3.20GHz (Skylake) Socket LGA1151 Processor - Retail
  • Memory:Team Group Elite 8GB (2x4GB) DDR4 PC4-19200C16 2400MHz Dual Channel Kit - Black (TPKD48GM2400HC16DC0
  • Graphics Card:Asus GeForce GTX 970 TURBO OC 4096MB GDDR5 PCI-Express Graphics Card with FREE Farcry Primal
  • Storage Mechanical Hard Drive:Unwanted
  • Optical Drive:OcUK 24x DVD±RW SATA ReWriter (Black) - OEM
  • Operating System:Microsoft Windows 10 64-Bit DVD - OEM (MS-KW9-00139)
  • CPU Cooler:Unwanted
  • Primary Solid State Drive / Hard Drive:Samsung 250GB 850 EVO SSD 2.5" SATA 6Gbps 32 Layer 3D V-NAND Solid State Drive (MZ-75E250B/EU)
  • Security Software:ESET Smart Security - Trial Key
  • Build Time:Standard Build Systems - Dispatched within 7 working days
  • Warranty:OcUK Standard System Warranty - 3 Year (24 Month C&R + 12 Month Labour)
  • WIFI:Unwanted

Total: £862.99
(includes shipping: £14.10)
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I am changing the PSU to Super Flower Golden Green HX 550W "80 Plus Gold" Power Supply
Does it look ok ? ( its just over my budget)

 

[Cullhaven]

Mostly Gaming and a a half way house for photos from my bridge camera. I dont manipulate them or Photoshop etc. This pc is still windows xp and though both kids have had windows 7 laptops, buggered if I can find any discs. Would 16 gig ram be better for gaming? Want to play Elite, Ufo Witcher III and stuff like No Mans Sky.