Translation?

I'd like to try a german translation of the software. What would I have to do?
How do I find the language files? Is it possible to simply translate some files and put them back?
Do you plan to have additional languages as a plug in?
If I translate something, how can I share it with you?
(Until now I'm just toying around with omeka.)

Sheila has answered some questions in another thread, look here:
http://omeka.org/forums/topic/different-public-viewing-rights?replies=5#post-466