Most of the details are available on the SCA's official website at: http://eastkingdom.org/EventDetails.html?eid=1833
The Faire usually has several events through-out the day, with itinerary provided by the Lion's Club. The magic show is usually quite entertaining.
The day's events are generally child friendly (I will be there with my son) and there are plenty of unique vendors to find some thing interesting to bring home.
While the SCA doesn't charge for entry, the Lion's Club usually requires a "donation" of ten dollars per person. They will then give you all the information, direct you to parking and the kids typically get a list for a scavenger hunt that encourages them to search the park for various things and see all the sights.
I will meet with you guys at noon, by the main stage.