£550 ~ £600 is a solid choice for a future proof pc
http://pcpartpicker.com/p/gCK6f7
About the case, it's up to you to be honest. (Keep in mind you need some space for the 970)
https://pcpartpicker.com/part/raidmax-case-atx403wb
https://pcpartpicker.com/part/nzxt-case-s210e001
https://pcpartpicker.com/part/cooler...ase-rc431pkwn2
Not sure about the storage tho, Want to use the old HDD or not?
If not, then a 1TB/2TB Western Digital Blue will do the job just fine.
It's up to you as well.
8GB RAM is not enough nowadays..
Windows + all background programs eat up to 3.5GB ~ 4GB. (If you got a dirty pc)
Some games nowadays eat up to 3GB ~ 5GB
And http://downloadmoreram.com/ won't help you
You can also go with an AMD processor, but then the full potential of the video card won't show up in games because the CPU will lack in performance.
I really not recommending you going with AMD's 2 years old processors.
When building a computer, you want to aim for that "future proof" build that will allow you do to easy upgrades if needed.
And since AMD probably won't refresh their processors (or they will) they would have a fresh platform and because of that you will be forced to upgrade your CPU/MOBO/RAM.
That's why z97 will fit perfectly in the future, especially with the new CPUs from Intel.
So don't buy old pc parts which won't really change anything, always think about the future.
Otherwise pay another £600 each 2 years for a new pc![]()