A couple PG ghost stories that are both well written and kid-friendly are Mary Downing Hahn's The Old Willis Place and Richard Peck's The Ghost Belonged to Me. My 2007 review of The Old Willis Place can be found here.
As for me and mine, we will be watching some scary (not horror) movies such as M. Night Shyamalan's The Village, and Wait Until Dark with Audrey Hepburn. Well, at least the twelve and older crowd anyway.
What are you reading and watching to get your spook on?