Music:
Pretty much everything, I think there is a mood for everything.
Movies:
Office Space, Serenity, Fifth Element, Spiderman, James Bond, Top Gun, Indiana Jones, Everything by Pixar
Television:
Lost, Smallville, They Call Me Earl, CSI, According to Jim, Firefly, Mythbusters, Entourage
Books:
Audio Books
Heroes:
Whoever created Slingbox and Tivo!