Go to MyExcelTools.com  
Excel Charts Gallery - Wizard    
With this gallery you will be able to access to the Excel custom charts gallery which are not native from Excel.

-Select a Excel custom chart

-Choose the range where the data is located
-Select where to insert the chart
-In order to create a custom chart press the button OK.
Custom Charts(Links):
-Excel Tornado Chart
-Excel Waterfall Chart
-Excel Marimekko Chart
-Excel Progress Indicator Chart ( Bar-Column )
-Excel Categories Chart
-Excel Percentage Chart Cube
-Excel Bump Chart
-Excel Cascade Chart

Percentage Cube chart is not available for Excel 2007