Not sure if this is the place but figured I'd give it a try. I'm trying to break into the world of home theatre but I don't know which system to get. Here's the predicament. I have a 40" Sony Bravia Tv, a PS3, and a Hi-Def Cable box. I figure I should stick with Sony especially because of their Bravia Sync feature. Here are my questions. Should I get a system with multiple HDMI inputs? How does the optical cable come into play? Should I get a system with an upscaling dvd player or will that just cheapen the quality of the system? Any help would be greatly appreciated.