Winery suggestions in Montalcino and Montepulciano

[Dswaterman]

Hi All,

I thought this would be a perfect place to start for suggestions on wineries for my trip in May. Headed to Tuscany for 5 days and will spend a day or two at some wineries in Montalcino and/or Montepulciano.

Any suggestions on great wineries would be appreciated.

david