Just as the title suggest. How can I hook up my new powerbook G4 to my Klipsch 5.1s. This is the new one, so it has optical out. The 5.1s dont have optical in. Is there a module i can use that will decode the optical? I know klipsch made a DD 5.1 module but i cant buy it anymore new. What do you guys recommend? Am i supposed to get new speakers now cuz to be honest, these 5.1s surpass anything ive ever heard.