There is no pricing yet, but all of the options, standards, and how everything is arranged has been out for a while:
http://eogld.ecomm.gm.com/NASApp/domestic/brandsel.jsp?regionID=1&year=2009
Select the model, then Print Book and Print Model (if you don't already know this).
Otherwise, order banks should be open very soon or already now, as this is the time typically for the system switchover. Still no pricing and that won't yet be out for a while, perhaps not even until after the first batch are built...sometimes they'll hit lots without numbers on the stickers until such time.
But should be very soon/now for the banks to open, and all the specs are up--just priceless and will be for a while, probably.