See some information here:

http://www.libremechanics.com/?q=node/19 (Good example NETGEN+CalculiX by Jhoan Sebastian Rodriguez)

http://dip28p.web.fc2.com/calculix/ (Python scripts + Explanation = Awesome!, by dip28, anonimous)

(other links:  http://dwg.ru/dnl/load.php?id=10604&z=.zip  ,  http://calculixforwin.narod2.yandex.ru/dip28.zip   )

http://www.youtube.com/user/calculix09 (Youtube Channel with bunch of free movies)

http://mechanicalhacks.wordpress.com/2011/01/10/calculix-fea-beam-part-4-post-processing-results-in-cgx/ (CGX Postprocessing)

(other links: http://calculixforwin.narod2.yandex.ru/mechanicalhacks-wordpress-com1.zip ,  http://calculixforwin.narod2.yandex.ru/mechanicalhacks-wordpress-com2.zip

http://calculixforwin.narod2.yandex.ru/mechanicalhacks-wordpress-com3.zip , http://dwg.ru/dnl/load.php?id=11286&z=.zip )

gmsh2ccx converter (by tuxfan22hh <lars.meindl)

http://caelinux.com/CMS/

http://salome-platform.org/

http://www.code-aster.org