Getting to Italy from Toulouse
Here are a few options:
1) Easyjet flies to Rome and Milan
2) Vueling flies to Venice
3) Direct or 1 stop flights between Toulouse and Rome/Venice. Look for promo offers and book well in advance. Airfrance/Aitalia, Lufthansa, Brussels Airlines have a few options.
4) Go to Ryanair airports close to Toulouse and then fly to Italy. One option is from Girona, Spain which can be reached by car or Eurolines bus.
5) Train via Nice, France.
You will need atleast a week to visit the major places in Italy (Rome, Florence, Pisa, Venice) and a bit longer if you plan Naples too.
A few Audio Guides in MP3 and ipod formats are available here.