Ruby (on Rails) for the web interface, I love it! :-) Java for data mining, image manipulation and data shoveling, like in xml transformation. You can't really

Ruby (on Rails) for the web interface, I love it! :-) Java for data mining, image manipulation and data shoveling, like in xml transformation. You can't really use Ruby for this... We also chose a servlet for one of our web services for performance reasons.