Its a update again, I changed and tweaked a few things :
Changed the case fan from the bottom to the top, so that heat can be disposed more easily. My specs were not very stable before, now it is. In my bios, I changed all the fans to turbo mode. My pc is in turbo mode too.
Benchmark of my current settings : http://www.3dmark.com/3dm11/6561407 Almost at 8k! im super happy
Bf3 never dropped below 50fps, which is pretty good.
Future upgrades :
A more powerful video card. (7970 or 7950, 670 or 680 or crossfire)
A Ssd, which I don't need but could be something to add.
One more monitor.
A better keyboard 'n mouse.
Let me know what you think in the comments! :D