Please help in choosing a new case and PSU

[RedManMark86]

Hi Everyone!

Hope you are all well.

Years ago I built my own custom PC and as time has gone I have slowly replaced parts and upgraded it to the point the only original things now inside it our its original PSU (pumping on 10 years straight now) and this case itself, an Antec P180 (which thanks to lots of moving is pretty much at its life end as well, plus it is too big)

So I have been scouring the web and looking for replacements before asking you guys but the choice is massive, especially PSU with now all these different standards :S, i have a budget of about £150 in total for both, though if I could get it a little under that would be great. The main three things I'm looking for case wise is good airflow as I will buy a couple of more fans or nick the ones from my P180 (why waste them?), I'd prefer it to be smaller than the P180 and something with good cable management. I quite like this one by fractal design

http://www.amazon.co.uk/Fractal-Design-Define-Pearl-Computer-x/dp/B00Q2Z11QE/ref=sr_1_1?ie=UTF8&qid=1431527674&sr=8-1&keywords=fractal+design+r5

As for PSU's, I won't lie I am completely lost thanks to all these new standards, rails, crossload, ripple and so on... But I do want something with will future proof me for the next generation of direct x12 graphic card (i'll probably hold of till the 2nd generation versions though) and if at all possible one with them fancy flat cables for easier management, also semi modular is fine as I don't see why I wouldn't ever need a motherboard and CPU cable?

Again I sort of came to either the EVGA Supernova B2 or G2, maybe 750W or 850W?

My current setup is as follows...

Motherboard: ASRock Z97 Extreme6
CPU: Intel i5 4590 @ 3.3Ghz
Ram: Corsair 16GB DDR3 Ram 1600mhz (Two sticks)
HDD: 128GB M4, 2x Sata HDD of various sizes
Peripherals: 1x Blu Ray/DVD Writer, 1X DVD Writer
Graphics: R270 and HD 7870 Croosfire
PSU: Hiper Type R 580W modular (yeah, don't know how that is still going and don't think it is pumping enough use for my crossfire cards)

Any help greatly appreciated, thanks a lot in advance

Regards,

Mark

 

[dottorrent]

First up, the case is briliant.

Secondly, either EVGA unit you listed will be lightyears better than that Hiper unit.

 

[RedManMark86]

First up, the case is briliant.

Secondly, either EVGA unit you listed will be lightyears better than that Hiper unit.

Yeah, I didn't want to come in here looking lazy like I hand't done a thing as that is just annoying. But i have a law exam in a couple of weeks so really should be studying for that instead of case reviews lol.
I'm pretty sure I will get that case if nobody says otherwise to an alternative.
It is the PSU that is testing my budget, I can get a 750W B2 for £70 (top end of my budget), or I can push for a G2 750W for £90 but will I really see the difference considering I'm not likely to overclock apart from my core clock on my R270 to match my HD 7870Ghz Edition, and the memory on the HD 7870GHz edition to match my R270 lol.
Do I need 850W to future proof my machine or will 750W be enough as I'll probably loose my old 500GB Hard drive and the DVD Rewriter?