Pivot Table With Dynamic, Updatable Chart, But Not A Pivot Chart!

My boss wants me to design a dynamic, updatable chart in Excel 2003. I initially made a Pivot Chart based on a Pivot Table which worked perfectly, but it doesn't look professional enough when printed (or viewed) and she wants me to approach it a different way.

So, I created a graph based on the data in a Pivot Table, and used dynamic ranges as the source for the graph series so that the chart updates when the criteria fields are changed for the Pivot Table. I then added two combo boxes (ie data validation lists) to the Chart sheet, and wrote VBA code so that whenever the combo box values are changed, the Criteria fields for the Pivot Table on the 2nd sheet are updated accordingly, and this in turn causes the graph to be updated as well.

This solution also worked perfectly, but now I've been told to create the graph without macros.

Does anyone have any suggestions? The requirements/details are as follows:

1. The Pivot Table is on sheet "PIVOT", and the graph is on sheet "GRAPH"
2. The Pivot Table has two criteria - School Name and Year Level
3. On sheet "GRAPH" there are two data-validated fields, School and Year, which only allow the selection of valid Schools and Year Levels

Is there any way to make the Pivot Table update when values are changed in the fields on the CHART sheet so that the chart also updates, but without using code nor a Pivot Chart?