http://www.apple.com/macpro/
Just released today.
iDrool.
Oh. Adding everything up above: $10,956.00. iWhimper.
[edit]After taking out some of the stuff I don't need - like Apple's custom hard drives, the crazy video card... and 15 GB of RAM (ahahahaha), the price tag is down to a more reasonable $3,718.00. Still on the expensive side, but I could get my own RAM and hard drives for much cheaper. Man, if I did Google Summer of Code, I could afford one of these beautiful machines....