Music, Formula 1, Football, Films, Books... among others.
People who are filled with optimisim and have that passion and zeal for life.
Oasis, Incubus, Muse, Radiohead, U2, Bloc Party, Maroon 5, Dave Matthews Band, Coldplay, Red Hot Chili Peppers, The Cure, Foo Fighters, Nine Inch Nails, Wolfmann, JT, the Beatles. There are simply too many but I'm not one to stick to a particular genre. Music is music.
The Godfather (123), Hero, Amelie, Almost Famous, Phone Booth, Italian Job, Rush Hour (1&2), Crouching Tiger, Under the Tuscan Sun, Eternal Sunshine of the Spotless Mind, Bourne movies, etc.
Entourage, CSI, House, Grey's Anatomy, Gossip Girl (yes), MTV, Discovery Channel
Wolverine, Darth Vader...