Nice specs but...
What would you use a computer of that power for??
Currently there are no games that are taking advantage of the power of a quad core processor, so unless you are into multimedia high end graphics design, it will be some time before we begin to reap the true benefits of a quad core set up, even with a 9800 GX2.
Of course the way technology is going I wouldn't be surprised that by the end of this year we will start to see more game and computer integration with the quad core set up.