I wanna build a gaming pc but i wanna to be able to be portable so i can take it to a friends house or something and also sit in the living room to watch movies and stuff
More about :good mini itx gaming build 700 dollar budget
Yeah it's pretty solid. If it were me, in addition to what tiny voices said, I'd probably spend a bit less on the CPU, a bit more on the motherboard and the HDD (1TB is much better value) and possibly rethink the graphics card (HD7870 is usually quite a lot cheaper for something fairly similar).
Also, the Node is really cool, but it's quite a lot more expensive than the relatively similar Elite 130.
For reference, same budget but bigger HDD, better motherboard and better graphics - http://pcpartpicker.com/p/2hQDe
(Memory is wrong in that it will only run at 1600Mhz, but it was the cheapest available).