Em Software’s Xcatalog lets you create bi-directional links between a QuarkXPress document and an external database. You can link any picture or text element, from a single character to a phrase or paragraph or entire story. It’s excellent for making sure that you’ve included the absolute latest pictures, text, and prices in a catalog or directory.
At $800, Xcatalog isn’t cheap, but it can save time and money if you regularly create or update these kinds of projects. They have versions for QuarkXPress 8 and 9, and for InDesign as well. Their free trial version lets you work with up to 50 records, so you can see if it will work for your needs.