9to5Mac have, what they are saying, is reliable information on the new Mac product specs.
For the Mac Pro;
Normal configuration: 3.2GHz quad-core processor, 6GB of RAM, 1TB hard drive, and the ATI Radeon 5770 graphics chip.
Normal configuration: 2.4GHz 12-core processor, 12GB of RAM, 1TB hard drive, and the ATI Radeon 5770 graphics chip.
Server configuration: 3.2GHz quad-core processor, 8GB of RAM, Two 1TB hard drives
For the Macbook Pro;
13.3 inch: 2.5GHz dual core processor, 4GB of RAM, 500GB hard drive
13.3 inch: 2.9GHz dual core processor, 8GB of RAM, 750GB hard drive
15.4 inch: 2.3GHz quad core processor, 4GB of RAM, 500GB hard drive
15.4 inch: 2.6GHz quad core processor, 8GB of RAM, 750GB hard drive (BTO upgrades to 2.7GHz quad core and 1TB HD will be available)