Everyone was expecting today to be the day fro the release of the new MacPro as Apple usually does it on Tuesdays, but as of 7:50 AM at least, the site still shows the basic MacPro information, but no info on upgrade costs, as it is suspected that these machines will quickly go up in price.
MacRumors does have a list of suspected prices for the upgrades, but until Apple actually releases it is all estimation.
Looks like an added $600 to go up to the D700 with 6GB of RAM and $800 for a 1TB SSD and $400 to go up to 32 GB of RAM, which is about all I could afford, as $1500 for an 8 core and $3000 for a 12 core just seems insane.