Speek is a Mac application that can speak texts for you. In addition, you can specify the language and the voice. You have the choice of different voices in different languages. The currently spoken word is highlighted in the text, so that you can always know which part is spoken. What is more, you can save the spoken text as an audio file.
InstantTranslate makes it really easy to translate a selection of text in the application you are working in from one language to another language.
One World Dictionary by Ascendo is a leading multilingual reference tool for Apple desktops.
