Reporting: The Ultimate Guide to Color Scales / Conditional Formatting

David Lean created a great four part blog post series on using conditional formatting and color scales in Reporting Services (applicable to both, RS 2005 and RS 2008):

found at: http://blogs.msdn.com/robertbruckner/archive/2009/02/19/ultimate-guide-to-color-scales-and-conditional-formatting.aspx