At this time of the year I always think of the Michael Jackson music video Thriller. The specific part that comes to mind is when Vincent Price has the following spoken part in the song:
The foulest stench is in the air
The funk of forty thousand years
And grizzly ghouls from every tomb
Are closing in to seal your doom
And though you fight to stay alive
Your body starts to shiver
For no mere mortal can resist
The evil of the thriller!
His fantastic voice and tone just sets the mood for Halloween. Another way to set the mood around your house is to try out one (or all) of these Halloween themes for Windows 7 from the Microsoft Personalization Gallery.