OM
Firenze is rather expensive city, but I think as all the turistic cities, it's quite easy to save money, my advice is avoid turistic restaurant, look well at the menu' outside the restaurant or pizzeria,(you could eat well with 15-20 euros but also bad with 100 euros) the other sites(museum, gallery etc) if I remember well, it isn't so expensive.
Thanks a lot about my photos on my website.
When will you come here?
Maybe we can meet and go to take pictures on the Landscape....
Ciao
Stefano