Using ColorBrewer in ArcGIS Desktop?
If you only need color scheme of ColorBrewer, http://arcscripts.esri.com/details.asp?dbid=14403 is a workaround while waiting for new update of ColorTool.
Here is Nice information about it. http://gis-techniques.blogspot.com/2011/03/how-to-get-color-brewer-ramp-in-arcmap.html
National Cancer Institute have not updated the excellent ColorTool for ArcGIS to ArcMap 10 yet:suggest that an email request sent to the ColorTool Technical Support: [email protected]
http://gis.cancer.gov/tools/colortool/