This article says your motherboard is not fit for a FX8 if you will oc:
http://www.tomshardware.com/forum/id-2384024/motherboard-tier-list-970-chipset.html
Moreover, you will have no cpu upgrade path with a FX as a starter cpu.
Here is my stock set of suggestions for a budget build:
------------------------------ budget build ---------------------------
For a budget build, I like to recommend that one builds for future expandability.
That means paying a bit more up front for some parts that allow for an easier future upgrade.
Let me start where you might not expect:
1. Buy a good 500w psu or better. 500w will run a card as good as a GTX970. 600w will run a GTX980ti.
Future graphics cards will be built on smaller 14nm so they should not need more power than today.
I would normally suggest Seasonic 620w:
2. Buy a Z97 based motherboard. Z97 will allow you to install a overclockable cpu and even offer a future 14nm broadwell upgrade.
You should find one for under $100. I would suggest a Z170 motherboard as a more future resistant option,
but the skylake chips are more than an entry level budget will tolerate.
Here is a M-ATX :
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157529
3. I suggest a G3258. It is a overclockable dual core at a budget price of about $65.
Here is what it can do: http://www.techspot.com/review/1017-best-budget-gaming-cpu/
In time, you can upgrade to any I3/I5/I7 cpu that you want and market the G3258.
4. The intel stock cooler will do the job up to a point. One can always add a cpu cooler later.
5. For ram, speed is not important. Buy a 8gb kit of 2 x 4gb DDR3 1.5v ram.
1866 is probably the sweet spot; faster is not necessary.
6. Cases are a personal thing. Buy one you love. Most will do the job for <$50.
Here is a silverstone PS08 for $35:
http://www.newegg.com/Product/Product.aspx?Item=N82E16811163223
7. The graphics card is the most important component for gaming. My usual rule of thumb is to budget 2x the cpu cost for the graphics card.
I like the GTX750ti and EVGA as a brand.
Here is a superclock version:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
You could go stronger in the video card if your budget permits and your games need it.
On the other hand, you could build using the integrated graphics and see how you do.
By deferring on the graphics card, you will get a better idea of what you really need.
Integrated is fine for sims, but not fast action games.
8. Lastly, I will never build again without a SSD for the "C" drive. It makes everything you do so much quicker. 120gb will hold the OS and a handful of games.
With 240gb you may never need a hard drive at all. Defer on a hard drive until your ssd approaches 90% full.
Currently, I like samsung 850 EVO best.
-------------good luck------------