BULL.
I just added it up, it's actually cheaper buying it like that than if you bought it all with all those components.
Now I'm aware you can get better setups, but for what they're giving you it's a good deal.
Best deals I saw at a quick glance on newegg:
8800 640 - $385
Q6600 - $278
2GB RAM - ~$100 (some with rebates for less)
Asus P5N-E SLI - $120
500GB SATA HD - $110
DVD ROM - $18
DVD burner - $30
Middle of the line keyboard/mouse combo - ~$50
NXZT Lexa case - $170
800W PSU - ~$150
Vista Ultimate - 319 (which is probably what they give you)
or Vista Ultimate OEM - $170
Total range = $1581 to $1730 (Depending on price variances and OS choice)
(PS, prices don't include shipping, but also don't include rebate price)
So yes, if that is what you want exactly, it's a better deal than buying and building, also shipping is included in the price and no tax.
Yes some will say you can build a similar setup cheaper, but if that is exactly what you want, I don't see why you shouldn't get it.