Thanks for the info on the spring weather expectations.
We're planning on being in Tuscany for 9 days. We'll probably spend 4 days in Florence.  I'm looking for ideas for where to go for the next 5 days.  My wife is an artist and intends to spend some time painting. She'll be interested in painting life in Tuscany; buildings, old homes, cafe scenes, people, etc.
1.  What other cities do you recommend we visit and for how long?
2.  Is it best to rent a car for traveling outside of Florence?  I've read that parking is a problem in the city and a car isn't really needed.  But what about seeing the country and other small cities?
3.  Any recommendations on outdoor activities such as hiking, bike riding?
Thanks!
Mick