I didnt realize that there was a monitor included, but ok, lets say you really wanted to build this PC yourself, and save some money. Here is how I would do it, and get the same performance...
I would first not include the monitor in the price, since we are building a PC, not a monitor. I would also drop the 2tb drive down to something more practical... its also been proven that super large HDs are slower that smaller drives... there would be a lot of information to sift through for the drive... I would also ditch the Ultras since every forum regarding video cards will tell you that the Ultra is nothing more than a volt-modded GTX, and if you know how to build a PC, you will know how to do oa volt-mod.
All prices are based on current newegg.com prices:
Processor...........QX6700 - $870
Mobo..................EVGA NF68 - NVidia 680i - $199
Cooling...............Tuniq Tower - $59.99
Memory..............Patriot 2x2gig DDR2-800 - $239.99
Video Card......... 2 x Nvidia 8800GTX - 2x$546.99
Sound Card........SoundBlaster X-Fi Fatality Champion - $179.99
Case..................Black Stacker 830 w/1000w PSU - $429.99
Blu-Ray..............Lite-On Blu-Ray - $479.99
HDD...................Hitachi 1TB - $329.99 (largest drive on site)
So, for a grand total of
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----$3891.92 before tax.
Dont tell me that you cant build a system that is just as fast and SMOKIN as that PC would be for much much much cheaper. Also, the Tuniq Tower can handle a healthy overclock, and the memory I chose is rated at a VERY VERY high overclocking spec. Now, if you want to get even more picky, lets add in there a 24" LCD Monitor @ $519.99 (Samsung) making the total $4411.
You cant tell me that having 2 Ultras instead of two GTX's and another TB of space is worth $2600. This is also using a MUCH better case, and bigger power supply. a 750w would be pushing it with two GTX or Ultras.