I just noticed that there's a nice new page up for the 64-bit computing Webcast series that took place a couple of weeks ago. Check it out here:
Gearing Up for 64-Bit Computing on Windows Server
Tune in to this webcast series and take advantage of the sweeping change in technology offered by 64-bit computing.
Run existing 32-bit code without modification on 64-bit Windows.
Write native 64-bit code (managed and unmanaged).
Learn about the next generation of development tools.
Find out about 64-bit processor architectures.