I'm getting a similar system.. same cpu, same ram, same optical drive, slightly smaller HD.
Except I was planning on the 6800GS and MSI mobo.. Not as good a card as you have but MSI is apparently pretty good. It's actually cheaper than the combo because the board's not SLI and the card is cheaper.. ($379 for you?) ($205+82 for mine)
I also have to get a case and psu ($200) so its getting into the $900s.
I really wanted to stay in the $800s though..