Disk Expert application for Mac OS X makes it easy locate biggest files on your disks, and find space eaters.
Disk Expert displays local volumes and allows to scan volume content for files and folders size.
Disk Expert can do more than just supply you with information about your disk space content.
You can analyze and manage it using the ability to collect files and folders in the special list from where you can transfer them to other drives or even move to Trash.
Furthermore, for each volume displayed, available some information about it.