Although I don't have too much spare time, I've finally decided to buy an XBox 360, mostly after I found there's an official VGA cable (so I could plug it directly to my TFT monitor and enjoy it at 1280x1024) and that the game Dead Rising was available (John Romero's Zombie film is one of my all-time classics).
I'm downloading some demos before deciding if I buy another game or wait for upcoming ones (like Gears of War and Mass Effect).