According to NVIDIA these cards will only be available by early February.
It looks like Nvidia is returning to its paper-launch roots just after it made everybody happy with its marvellous Geforce 7800 GTX 256 announcements, where those cards were available from the day one.
Should we even mention Dell's "lipstick on a pig" Quad SLI machines that won't see the light of day till spring - and it is still rather cold here.