That comes to around 1900 after shipping but before rebates. Extras not in your pre-configured build are:
The Agility SSD. Will greatly speed up boot times and game level load times.
The Raven case. Very advanced design, very well cooled.
The Seasonic-built Antec PSU is probably far higher quality than the Alienware one.
I was also looking into the charts that this website has, do you think going with ATI Radeon HD 4890 CF is worth it? I have been out of the tech loop for a while and trying to reorientate myself with what I should do. This is a slow process! All advice/builds are welcome!