I reconfigured Archivarius to *look* more like dtSearch (stupid stuff I hadn't thought to try before, like placing the viewing pane at the bottom of the screen) and re-indexed my Outlook files. Took a hair over 2 hours

All I want for Christmas is an Archivarius COM add-in for Outlook. I'll never ask for anything else, ever. Promise!
Thanks for your insights on dtSearch. With 2GB RAM on my system, I didn't notice it being particularly memory intensive and, as mentioned, it indexed everything in two hours flat. I'll try updating the index in a day or two and see how it does. However, I'm already blanching at the prospect of paying $200 for it... Archivarius does everything that I need it to. I'm going to try indexing Outlook as "other e-mail" and see where that gets me. For now, I intend to continue with WDS and Outlook and Archivarius for everything else. Will keep you posted on my experience with dtSearch.