My machine nearly cried in pain, apparently because I don't have an Nvidia GeForce 8800 Ultra.
I did play with turning on some of the more advanced graphics features just to see what it looked like, and even though it was so slow as to be unplayable, it was damn fine pretty. I think at one point though, smoke actually started coming from my poor little ATI X1850.
I've also heard rumors of someone who set up two GeForce 8800 ultras in a dual SLI configuration with a 30-inch Apple Cinema display running at something like 2600 x 1900 resolution, and he had a small nanosingularity open up between the two cards and he disappeared.