Storage Triage - Professional 

Sorage Triage utility that will size and analyze your directory space. It provides access to the gathered data via a powerful Tree View, Graphs, Reports and exports to Excel, PDF, RTF, XML, Database and others. It is able to visual show growth!!
disk space sizing analysis

Disk Size Manager 

Disk Size Manager - a powerful hard disk space manager. Using Disk Size Manager you can keep track of your hard disks space to ensure its most efficient use. With its 2D/3D pie and bar charts as well as detailed descriptions in words.
disk tools disk utility directory size folder size hard disk hard drive