Comparing contacts to an external list of names

I have a list of names in an external file. Right now, it's an excel 2003
spreadsheet, but I can just as easily put it into Access, Word, text/CSV,
etc. Each name on the list corresponds to a contact in Outlook -- or it
might not (some don't exist, and don't need to).

I need a script or program that will compare the names or File As field of
each contact in Outlook with the external list. If it doesn't exist, it can
move on to the next one. But if a contact entry in Outlook DOES exist for
that name, I need it to move the contact to another Outlook contacts folder.

I've been doing this manually, one by one, and I'm tired There's about
3,800 names to get through, and I'm only on 1,219--after several hours of
doing this.

Anyone have any suggestions on how this can be done more efficiently? Is
there a script or program that can do it? I'm very technically inclined
(used to program, but it's been years), and don't mind something fairly
complicated, but I desparately need to find some way to do this more
efficiently/automated.

Dan