It would be great to be able use a query with the Duplicate Merge tool, instead of having go through the entire database.  That way we could check our most important people first, like donors within the past 5 years, and not worry about a duplicate of someone who has never given.   Also, After you run the Duplicate tool, have it create a static query of all the duplicates it found so you can check them at your own pace, or have it be a summer project for more than one staff member.