If you use Internet Explorer but have not upgraded to version 9, you may want to do this sooner than later. There is a GREAT translation feature built into IE 9 that allows you to almost effortlessly translate your sermon and class material into multiple languages. This is a great and free service to spread the gospel of Christ to people you will never meet and countries you may never visit.
The accuracy tests I have run on the translation service have not involved every language, but the languages that have been checked have proved to be remarkably accurate.