XCopy is a very useful tool included in all versions of Windows. With XCopy you can copy large amounts of data with ease. Plus it has a switch that lets you copy over the NTFS permissions.

Creating an initial full copy with XCopy

xcopy "C:\Source Folder" "F:\Destination Folder" /X /H /E /V /C

Copy files and folders that changed since initial copy

xcopy "C:\Source Folder" "F:\Destination Folder" /X /H /E /V /D /Y /C

Explanation of XCopy switches

/? Shows a list of all possible XCopy commands.
/XCopies file audit settings and file ownership and ACL information.
/HCopies hidden and system files.
/ECopies directories and subdirectories, including empty ones.
/VVerifies each new file.
/DCopies files changed on or after the specified date (D:m-d-y). If no date is given, copies only those files whose source time is newer than the destination time.
/YSuppresses prompting to confirm you want to overwrite an existing destination file.
/CContinues copying even if errors occur.

The full XCopy documentation can be found at microsoft.