Ok, under $2000 will get you a very nice system.
E6600-$308
ASUS P5B Deluxe/Wifi-$210
RAM-$315-40 MIR=$275
PSU-$135-25=$110
=$903 after rebates
So then we can add the
8800GTS and plus you can get that in a combo deal with the E6600, so that saves you $20 right there.
Also you'll need a case, I would suggest this
XCLIO It's quiet and will keep your system pretty cool.
Then you'll still have money to get a nice monitor. I personally would suggest the 22" one
That's an amazing deal for such a large monitor.