How would you like them to look just like the Out Of the Box Ones? http://www.gotdotnet.com/codegallery/releases/viewuploads.aspx?id=b6499eb0-0eae-4597-b38e-ee9cbc71a404 has a tool, while not supported by Microsoft will help you in writing new reports! Have fun!

This utility provides report writers a quick way to generate a chart or tabular Microsoft CRM report template with a similar layout to standard out of box Microsoft CRM reports. The contributors, Neelu and Lan, are on the Microsoft team, but this download is not provided by Microsoft, and is not supported by Microsoft. We came up with this tool to help make all the reports look consistent...