Here are some video clips published by Microsoft that you will find interesting & helpful.

Microsoft Excel Clips

• Excel 2007 Top 10 Tips
  1 hour 6 minutes
• Excel 2003 & 2007 – Managing Data Effectively
  56 minutes
• Excel 2003 Top 10 Time Saving Tips
  1 hour 10 minutes

Conditional Formatting Options

Examples

A couple of examples of these techniques in use are as follows.  The first example shows three different applications of color shading.  In the first column shows shades of red in varying degrees of opacity from 35 to 70.  Any number under 35 in the first column is left with no background color.  Any number over 70 is colored solid red.  The second column displays a 3 color shaded scale with the highest values (preferred values) in the column being blue, the middle values being yellow and the lowest values (potential problems) being red.  The third column uses the same color shading scale but in the opposite manner – the highest values (potential problems) are red, the middle values are yellow and the lowest values (preferred values) are blue.

Color Shade Example 1

In the second example, the same numeric data is used to demonstrate data bars and icon sets.  The second column formatting has been changed to apply a blue data bar.  The third column formatting has been changed to apply an icon set.

Data bar and icon set example

Shout out to Amit Velingkar for writing a great blog post on Conditional Formatting Simplified in Excel 2010.