Hi jengray282 — you might want to check out this post for some ideas to consider for your trip. You’ll find some winery and restaurant recommendations in there.
Also, John has some good recommendations you might consider as well on his post (scroll down a bit).
My favorite restaurant in Chianti is Osteria Le Panzanelle just outside of Panzano. You can read more about it here. Reservations are pretty much required because it fills up with locals and just a few tourists in-the-know.
For the definitive guidebook on restaurants where the Italians eat, check out my post on Osterie d’Italia here.
Finally, about doing something with kids, the winery tours are probably less interesting to them, but one thing you might consider is renting some bikes from Ramuzzi in Greve, and doing some touring around the area on a bike. They may even have some guided tours, you would need to email or call them (they speak English).
If that’s not enough to get you started, let me know. 😀