Brad.

While I have not used a shared calendar, other than at work on the network, for the things you discuss in your post, I have just started using the Google Calendar to share events between my wife, son, daughter and son-in-law.

We are able to post events for each uf us to view. I can invite others to view the calendars as well.

I'm happy with what I can do so far, but as I said, I haven't gone into the depth your are discussing.