This task sure looks like RoboCopy would handle it for you.

RoboCopy is a FREE utility from Microsoft that can be downloaded from here.

Windows Server 2003 Resource Kit Tools (RoboCopy)

Robust File Copy Utility

Here is a link with a little more information about the utility.

ROBOCOPY.exe (Resource Kit )

I'm sure KiXtart can also do this for you but at a much slower speed and a higher learning curve to complete the script and minimal error control.