US drivers are 40.5MB and the international drivers are 61.4MB.
If the servers are busy (which they will be for the first few days) then try Gamershell.com or Guru3D.com.
NVIDIA PureVideo™ HD driver with support for the following features:
Hardware acceleration of H.264, VC-1 and MPEG-2 HD movie formats.
Video post-processing image enhancements.
Built-in support for HDCP content protection protocol via DVI or HDMI connectors.
Please visit the NVIDIA PureVideo website for more information on building a PureVideo HD system.
Includes the new NVIDIA Control Panel. Please visit the NVIDIA Control Panel website for more information.
Microsoft® DirectX® 9.0c and OpenGL® 2.0 support
For a full list of fixes issues, please view the release notes.
Release notes (PDF)