Comparing a portion or a file name to a directory name and then moving the file into the appropriate directory.

I am looking to compare a portion of a file name, to a directory name, and move the file that matches the directory name to that matching directory.  On top of that, I would also like the user to be able to append a user defined date onto any files it will be moving.
 
Here is a sample of what I am looking to accomplish using windows scripting (if possible):

Data files reside in \\server1\Share\

Sample File Names:  
(there will be hundreds of variations on the file names, possibly multiple files for one ###XXX)
123XYZchk.txt,
456ABCdta.txt,
456ABCchk.txt  

Destination is \\server2\share\

Sample Directory Names (hundreds of directories):

\123XYZ\
\456ABC\

I want the script to compare the first 6 characters of the file name in  \\server1\Share\, and then move it to the matching directory in \\server2\share\

At some point in this process, I think it may be easiest to do this while all the files are together on \\Server1\Share, I would like a user defined date to appended to the end of all file names.  
The final result would look something like this:

1. Prompt for the user to enter a date to append to all files at the end of the file name (before the extension)
2. Append UD Date and then compare the first 6 Characters of the file names on \\Server1\Share\ to existing directories on \\Server2\Share
3. Move the files to the appropriate directories
4. End Result:
\\server2\share\123XYZ\123XYZdta_mmddyyyy.txt
\\server2\share\456ABC\456ABCchk_mmddyyyy.txt
\\server2\share\456ABC\456ABCdta_mmddyyyy.txt
(the '_' in between the file name and date is completely optional, just thought it looked cleaner)

If I could assign a billion points to this, I would.  Any help would be greatly appreciated.  I am familiar with windows scripting, I have used it quite a bit, but I dont use it enough to create something as complex (or so it seems) as this.

Thanks very much for your help in advance.