Ametrine,
DD and I have had many such encounters with artists throughout her life. They all start of pretty basic in their answers to her questions until she keeps asking more and more, or commenting on specific aspects of their work, or their answers and then I usually have to drag her away. It has also deepened her love of art and improved her artistic tendencies with all of the exposure she's gotten.
I understand the need to physically meet other parents of gifties. Although it is not as common in your area, look for some stay at home dads as well. DH is a stay at home dad right now with our little one and they meet an old man in the park near our house and discuss gardening with him because there is a community garden there. DD3 is getting to be quite the expert on which plant is which herb and when they are ready to pick and how to cook with them! (Although I wouldn't want to eat some of her recipes
)
