Walking tour of wineries

Hi there

I am planning a trip to Italy in 2014. Apart from Bianzone in the North (where my great grandfather came from), I do not have any other firm plans for where I want to go. I have been to Italy once before but many years ago. I would like to do a walking tour of a winery region but am on a budget so the guided tours seem to be out of my price range. Is it possible to combine lovely walks in the Tuscany (or any other) region in Italy with wine/olive tastings along the way. Any suggestions are very welcomed. Thanks, Annie