Let me help you get the price :3
CPU : Q9300
@$270 (I recommend get Q9450 because of L2 cache 12MB instead of 6MB
@$330)
Mobo : EVGA nForce 780i SLI 775 A1
@$280 (I don't see any problem with this mobo :3, Im using 780i Evga also haha)
VGA : EVGA GeForce 280 GTX
@$450 (Well, if you have some green to spend the go for it
PSU : CoolerMaster Real Power 850 Watt
@$200 (good choice)
RAM: Corsair TWIN2X4096-8500C5DF 4 GB DDR2
@$150 (Holly! this is good stuff)
CPU Fan: Zalman 9700 NT
@$80 (Im using the 9800 series I believe, and its great, 9700 NT also good)
HD : Western Digital SE16 500 GB SATA
@$75 (both WD and Seagate are the best)
DVD R/W ROM: Lite-On 20X SATA
@$30 (At this point, andy burner from Lite-on will do~~ all are good in my opinion :3)
Case : CoolerMaster Cosmos 1000
@$190 (its a bit pricey but looks good :3, but I prefer my thermaltake Armor series more

)
Total Price :
$1725
Bottomline : Its a good buy, although I will wait for the Vga price to drop a bit... 
Here is my computer~~ (the rig detail on the post #3)
and here is the screenshot of crysis (all screenshot from my rig)
1280 X 1024 ,ALL HIGH, NO AA
Still more than decent to look and play ~
