I recently came across Jason Hunt's blog - and thought these two postings might be of possible interest to others:
http://huntjason.wordpress.com/2009/10/15/cursory-look-at-wpf-control-suite-vendor-offerings-part-1-of-2/
http://huntjason.wordpress.com/2009/10/15/cursory-look-at-wpf-control-suite-vendor-offerings-part-2-of-2/