A reason...how about the fact that they're sending me one, and I don't have to pay for it? Is that reason enough?
That is a fucking AWESOME reason!!!
there is no way you could get your hands on 4 7800GTX 512mb's is there? Also they woudn't draw that much power idle....how could you make them all go to a full 3D load?
Quad Opteron 880's, 16GB of ram, 32HDD's should EASILY max the PSU out.