I would suggest maybe hitting up Downtown Disney (DTD) on your arrival day. That way you can have a little bit of Disney without wasting a half day (or less) on a park ticket. We love to eat at Wolfgang Puck Express (PIZZZAAAA) or Earl of Sandwich and then hit up all the stores in the area (World of Disney,
Lego, Trend D, etc.) Getting a sundae at the Ghiradelli ice cream shop is pretty awesome, too.