Hi,
i could contribute a german translation, especially for the client. I like your software, and there is no problem with an english designer, but a native language client (think about chart or window menus) is a must have to convince the people who make the decisions.
By the way, i was in contact with a german sales representative a few years ago, but now i receive mails in spanish. Maybe you should hint your people in europe to check potential customers language.
Regards