thats alot of computer for someone who doesnt game...
unless your high end apps that you use are 3d modeling with 500+ parts.
and im still not convinced on the quad core processors (let alone the i7 which is more or less 8 core processors). they are alot of money for the little speed increase. generate a ton of heat and use even more power.
dell now owns
Alienware they are where i would go for a high end PC