1, no, get a seasonic, corsiar, or silverstone
2, neither, get either the Noctua NH-D14 SE2011 or the Corsair H100i
3, nope
4, i have highlighted parts you should change:
a single 7970 is not really ballpark for a 3930k, you could keep the 7970 and downgrade your CPU to a 3770k and MB to a Z77 or up the GPU to dual 680s, or tri-670s, the larger number of PCIe lanes on the 3930k make it better for multiple GPU setups, if you plan on doing professional work, replace it with a Firepro or Quadro
the Pheobus is a weak soundcard aimed at low end computer 5.1 systems, if you want good sound, get a Xonar Essence STX
the momentus XT is a 2.5 inch laptop drive, get a Barracuda XT if you want a hybrid, or get a normal HDD and a 60 GB SSD for caching
why get an external, just add a TB drive to your desktop
PSU, as i said, get a Seasonic or Corsair, or maybe a Silverstone
bose speakers? you are getting $50 sound for $250, get a pair of KRK RP5s they are $300 and will interface directly with the Xonar STX