Pricewise, ordering everything through Amazon came in at a total of about £800, excluding my little peripherals of a G403 mouse and a G213 keyboard, both of which are absolutely awesome. In fact, the entire build is great to use. The three drives which I've not shown the price for were old ones which I cannibalised in the process of building this one, with windows 10 being on the SSD.
Pretty much every game I've played so far, be it Space Engineers, Unturned, Warthunder, Civ 6 and so on have played really well, consistently using high, ultra or max settings, Warthunder even slightly surpassing cinematic quality, while remaining comfortably at 1080p ~60FPS, if I left it uncapped I suspect for some of the games it'd be higher, but my monitor is only 60FPS, that said, I'm fine with that, I don't notice any jutters or stutters and everything is smooth. Overall I'd rather trade that FPS over 60 for great anti-aliasing and beautiful textures. If I have one regret with this build, it'd be not waiting for coffee lake. It would have probably pushed my budget that little bit over though. That said, I've not really had problems from the CPU, the extra little juice would just help me do stuff in the background or speed up Civ 6's AI turn times.
Onto my new drive, I truly love the 3TB Barracuda drive. It's overkill, I know, but now I needn't worry about ever really running out of storage. A fair few games installed and it's barely scratched the surface.
As for the future, I'm looking to slowly upgrade here and there. It'd be nice to get up to coffee lake, likewise it'd be cool to get a nice 16GB of RAM. I've rather fallen in love with G.Skill's RGB stuff. The GPU I don't imagine I'll replace for a while, due to both cost and that it is a good one. Gigabyte do need to sort out their software's a little bit, there are quite a few, and it a couple don't work well along with Radeon's stuff, however hardware-wise it's great. On the topic of software though, Logitech haven't failed me. The G403 and G213 both have RGB, which works with the amazing Logitech Gaming Software, it's very easy to use, can sync up to games, has all the features you'd want really. The mouse I went for is wireless, but when it gets low on charge you can just plug it in and use it wired while it recharges, and the battery lasts well. It's got three programmable buttons, and left/right keys can be switched. You can even setup custom commands such as a key combination for the button, y'know when you just want to quickly shout "GET OFF MAH LAWN!" - It's the perfect size, comfortable to use, and a good weight with the little extra weight installed. The keyboard, ooh the beautiful keyboard. I know some of you out their are die-hard full mechanical cherry MX boy's, but Logitech and their quite, but still amazingly responsive, "memchanical" setups. If I had to pick a problem with it, it'd be that personally I'd have liked the lighting to be slightly more even, but it's only a little gripe with an otherwise great, and great value, keyboard.
The drives stay around 30C and the motherboard peaks at 60C but is usually at about 35C. Sorry about the low quality photos.
Edit (03/06/2018): Got a two-pack of corsair LL140 fans in the front now. Very happy with them, they are quite, the lighting is awesome, and in general great.
Has lasted me for years. Still works, still fast, still great.
Silent, problem free, and great value for money.
Gigabyte software caused a few headaches, notably the AORUS gaming software, which wasn't really happy running alongside Radeon's software. In the end I uninstalled the gigabyte software as it truly was quite incompatible, however not having any problems now, and the card itself is great.
Great case, easy to assemble, good airflow, brilliant design.
Be warned however, if you intend to install an AIO cooling loop then you either have to use up the front of the case, or limit yourself to a small 140mm one on the back of the case. Personally I'd have preferred the case being a slight bit taller to allow for a radiator on the top. The H700 seems that it would fill that role though, albeit with a slightly different design.