Heh, don't say that.. I was as nervous as **** ordering my first build I thought something wouldnt work, but all turned out well... eventually, I tried using an old power supply and it died when I tried to power the new build, THOUGHT it was my mobo.. eventually I got a new one and all worked.
Anyways, good luck with the build Felixhi, everything looks good... The first build is always the scariest.