Made up this listing of Statistical Software, besides R -- thought it might be useful
http://www.JMPdiscovery.com/
Splus -- http://www.mathsoft.com/webstore
SAS -- http://www.sas.com/software/products.html
statview -- www.statview.com (mac only?)
statistica ??
sigma plot -- www.spss.com
sigma stat --
SPSS -- www.spss.com
MatLab statistics -- http://www.mathworks.com/
http://www.eng.yale.edu/Matlab/
NAG excel add ins -- http://www.nag.com/
atlantis -- http://sigmasoftc.com/atlantis/
Good listing of software at
http://statlab.stat.yale.edu/statlab/software.html
http://www.eng.yale.edu/Mathematica/