If you upgrade the CPU you will need to upgrade the motherboard too (and possibly the RAM if it isn't compatible or too slow). You will also need to check if the power supply has enough oompf. Depending on where you are and on what budget, i would also stray away from a 970 now, unless you find a used for peanuts. Also read up on the GPU size and look if your case has enough space. I had some trouble many years ago when my MSI 6870 was too big for my case.
As for putting it together, it's pretty much like building with color-coded LEGO bricks.
If it seems daunting to you anyway or you think you may poop your pants while putting the CPU in the socket without breaking it (at least that's how i felt for 5 different CPUs
), you could very well get a full order-built pc from a shop near you for 50-100$ more. OR ask them if they can put it together for you.
Last edited by YouR_DooM; 09-06-2016 at 12:59 PM.