Our website is now multi language.
English and Dutch.
We used "Multi Language Module" from putyourlightson.net.
It took some tweaking and time, but as of now we are set to add other languages when requested.
The Multi Language Module is an Expression Engine add-on that allows
you to create phrases in multiple languages, which you can then display
in your site templates and call from other add-ons.
It comes with 3 languages by default (English, Spanish, Italian) but you
can add and delete languages as you please.