System has finally finished all its configurating and the RAID has finished initializing itself.
I first set it up with RAID 1 and I got about 5.9 in the Windows Experience Index (WEI). I decided however to re-configure this and use RAID10 since i'd not only get the same amount of space and reliability but would be faster than just RAID 1 (for those who don't know, RAID 10 is basically RAID 1 and 0 put together).
Here is the system WEI (Using integrated graphics):
http://img502.imageshack.us/img502/969/wei.png
As you can see the hard disks are the bottleneck, so maybe i'll add an SSD for the OS in the future. (And ofc buy a dedicated graphics card which is next on my list anyway).