Ordered mine today.... pretty darn pumped really....
I've been waiting for this machine for quite a while, as a workstation for my recording studio, and the update suits me fine really.... All i really wanted was some current horsepower for the price, and its certainly there. Twice the cores at a faster speed, twice the ram, and more HD for just a tiny bit more than the old base model....
Here's a hint for anyone considering a purchase -
An Apple Developer Connection "Select" membership will cost you $500, and will give you a 'one-time select member hardware discount'. The discount you get with it will save you at least $500 on a base mac pro, and even more on a tricked out one. After upping my hard disks and adding a wireless mouse and keyboard my 'select' price in canadian dollars wasn't even back up to the retail base price..... Basically if you were going to order retail anyway you'll be getting the select membership for free, or even saving a bit of money. The membership has some perks for attending events, and access to lots of extra downloads, including developer use full versions of the client and server versions of tiger and leopard.... Lots of other goodies too....
Food for thought....
-N