Selecting large data sets for export from the Content Manager search

Hi folks,

I've got a set of roughly 14,000 topics that I need to export in order to perform bulk search/replace actions. The Search feature from the Content Manager let's me select them in sets of 20 per page. Please tell me that I don't have to mouse my way through 3,500 pages of selecting in order to do this. There must be a way of selecting whole set at once, right? Or showing more results per screen?

Thanks,

Jeff.