Pick3 :
Every thinng looks good. Now will this Run games such as Skyrim with out much lag? I also play a bunch of online stuff such as Leauge of legends where FPS mean a lot.
two more things; Can this be easy expanded? Like could i upgrade storage?
Also Where does the Proccesser sit compared to I5 and I7. I have never heard of that type.
One last thing can it handle dual screens? while streaming on twitch?
Sorry to ask all these questions i just would like the best computer for what i need
Yes this is a tremendous amount of processing power on both CPU and GPU.
That particular Xeon model is very similar to an i7. They are both Haswell quad-cores with hyper-threading for a total of 8 logical cores. The main difference is that the Xeon lacks integrated graphics so it's a bit cheaper than an i7. It does also have many workstation abilities as well but you probably won't use those if you are only gaming. It will be very useful for recording/streaming your gameplay in high quality.
You can add as much storage as you have ports on the motherboard, which is many. This board also has an M.2 SSD slot so I put an M.2 SSD in the build for use as your primary storage. Those are ridiculously fast.
You can also expand your graphics (SLI and Crossfire capable), and expand your RAM.
The board also has the top of the line Realtek ALC1150 for sound.
(I just swapped boards since the Asrock board was not SLI ready).
Everything is in a high quality case and I chose a high quality EVGA PSU (made by Super Flower on the acclaimed Golden Green platform.)
Now if Streaming is something very serious for you, I have my ultimate build which uses the Haswell E 6 core-12thread CPU (instead of the 4c8t xeon). It's a few hundred more. The Xeon will stream much better than an i5, but the Haswell E with more cores are even better for that.