PRIMAL can be used to route, modify and store DICOM Radiology image files.
Typically this tool is put between a image acquisition station (modality) and a PACS to route images and modify the DICOM tags in ways that are not easy to do on the acquisition station but needs to be done prior to the study arriving at the PACS.
PRIMAL is designed to turn a Fedora or Redhat Linux server into a DICOM routing appliance. Most information can be viewed through the web interface.
Commercial...
DownloadDaemon is a comfortable download-manager with many features like one-click-hoster support, etc.
It can be remote-controled in several ways (web/gui/console clients), which makes it perfect for file- and root-servers, as well as for local use.