BRB ArrayTools is an integrated package for the visualization and statistical analysis of DNA microarray gene expression data.
http://linus.nci.nih.gov/BRB-ArrayTools.html
Gene expression signal intensities
Genelists based on statistical tests and figures based on visualization tools
BRB-Array Tools is available as a free Excel add-in downloadable through the Biometric Research Branch website.
Figure 1. Screen shot of class comparison using BRB Array Tools

Figure 2: Screen shot of hierarchical cluster using BRB Array Tools
