Internationalisation
Dictionaries
Application
Strings
Menus
Manual
Help
Culture
Countries
Languages
en-AU
en-US
es-ES
Spanish
Spelling
Reference
There is a Spanish dictionary at http://www.rae.es/
Open Office has a number of dictionaries at
http://wiki.services.openoffice.org/wiki/Dictionaries
The Open Office linguistics project can be found at: http://lingucomponent.openoffice.org/