Multinational Machine Translation?

TheLocustNMI asks: "I'm currently employed as a systems analyst for a mid-sized consulting firm, and we have been charged with the task of finding a multilingual solution for an entire enterprise system. After much study, the question remains: Is there an effective multi-lingual machine translation system out there? Could one be built? Would it be a massive distributed knowledge system, akin to Everything2? Could it be free to the net public? Ideas?"