In regards to the OS vs the S2, I am having a really hard time deciding. The S2 allows for more placement options. But the punch in the gut feeling you get from the OS is just awesome. I keep going back to the blind test where I heard the Cap Pro, S1, and OS for the first time and reading my own comments as well as others. Because I focus more on movies and games over music I'm really thinking the OS is the way to go. But at the same time I do listen to music and really want a well rounded system. I really don't think I can make a bad choice.