Thanks. Right now I only store directly PIM related documents like lists (roughly 15 excel sheets). And temporary documents (lists I have to convert to tasks / reference lists).
E-mail and other documents are in my archive's. These are so large (multiple GB's) that I have no intention of storing these in UR.
One application you might want to look at:
Archivarius, very cheap desktop search alternative with extensive capabilities and continuous development. I sent them an URD file as an example to support; no response yet though
.
Link:
http://www.likasoft.com/document-search/
Note: Haven't looked (or heard of) Search Inform yet, sounds interesting.