Storage: Samsung - 860 Evo 1TB M.2-2280 Solid State Drive (£178.97 @ CCL Computers)
If you go with a m.2 ssd go with one that supports nvme (I think the 860 comes in both models or maybe all their m.2 support nvme - not sure - i know some m.2 ssd do not support nvme such as mx500 and bx300. i.e, m.2 is a form factor not an interface.
The 860 M.2 apparently is no NVME drive and only has a fraction of the speed the 960 Evo has, which is NVME.
I haven't read much about NVME, so I cannot give any details here, but I don't see the point in buying a 860 EVO M2 if the speed is the same as the speed of the cheaper 860 EVO SATA.
Prices are on alternate:
860 EVO SATA: 177,90€
860 EVO M2: 199,90€
960 EVO M2: 279,00€
I can see why you don't want to pay the additional 80€ (or whatever the difference in pounds is) but...just using m.2 for the sake of it doesnt make much sense to me. Might actually block the slot for the future if you decide to buy a drive which actually uses that speed.
Video Card: MSI - GeForce GTX 1070 Ti 8GB Video Card (£439.79 @ Overclockers.co.uk)
the 1070 has been out for a long time. Btw if you are running 1440p or 1080 might as well get a 1070 instead of a 1070 ti if there is a big price difference.
The 1070ti should be by far the best option. It offers more speed than the 1070 but instead of 20% price difference you get it for 5% price difference. The 1070ti is the newest addition (of the last generation) and is best price value.
Alternate didn't even have a 1080 MSI card anymore, so I took the ASUS strix as comparison (which is quite expensive, but this is just to demonstrate the price jumps between the models which should be similar for MSI)
GTX 1070: 519€
GTX 1070 Ti: 549€
GTX 1080: 639€
Test on PCgamer is pretty got for comparison:
https://www.pcgamer.com/geforce-gtx-1070-ti-review/
for 1440p
GTX 1070: 60.9 fps avg
GTX 1070 Ti: 67.9 avg
GTX 1080: 75 fps avg
I'd personally definitely go for the 1070 ti just because the price difference is so negligible.
Power Supply: EVGA - SuperNOVA G3 750W 80+ Gold Certified Fully-Modular ATX Power Supply (£119.99 @ Novatech)
Your power supply is excessively expensive and also larger than you need 650 should be plenty and 600 is probably fine. If you like that model/brand then check the price on the 650 it should be 30lb less. My personal preference on power supply is seasonic platinum but the one you picked is fine just way too expensive and bigger than you require.
Yep, pretty much over the top. You could probably add another gtx 1070ti and the supply wouldn't even be sweating. If that's the idea, then it's cool.
I actually did the same...which in hindsight was stupid.
I'd probably go with you's recommendation. If you want to spend a lot of money on your PSU you can also spend it on more efficiency. Seasonic is a pretty good choice but I also like XFX as an option which also has some compltetely passive options.
And for Windows 10: Yeah...won't recommend to go to a grey market reseller, but before you buy anything, first try if you can use your old license. Even OEM Versions can work without problems.