Regarding web sites for public transportation in Tuscany:

Train schedules are available on the Trenitalia site: http://www.trenitalia.com/

We always get our rail passes from Rail Europe: http://www.raileurope.com/us/index.htm

The Lazzi company operates buses in Tuscany: http://tinyurl.com/kkryg

and in Metropolitan Paris, RATP: http://www.ratp.info/informer/anglais/index.php

Although we speak neither French nor Italian, we have never felt the need to purchase a language translator.

Have a great trip! Linda