We will be spending 10 days in Tuscany (flying in and out of Pisa) in mid-April. We don't plan to spend any time in Florence as we've been several times but want to explore the smaller towns and countryside. We would like to find one or two centrally located spots with charming inns and really good local restaurants and food shops to use as a touring base. Any ideas? Also would appreciate suggestions for don't miss restaurants in the area. Prefer casual restaurants frequented by locals--not big on high-end special occasion venues. Thanks.