QUOTE(BuyItModIt @ Oct 2 2006, 05:32 AM)

Would the standard L & R Phono plugs use all 5 speakers for specific sound such as centre (behind you) or right rear (south east) speaker & not all speakers at once? (For a game called dead rising where the 5.1 sound tells you where offscreen zombies are). Or would it be possible to make a homemade adapter cable that changes the optical output cable into a load of phono plugs (for plugging into the other phono sockets as above)?
(Tried to add this earlier but posting time limit wouldn't allow it so I had to add a new post).
No! Standard L & R plugs, red and white are just that, 2 channels. They only seperate right from left. You could get the sound to play through all 5 speakers, but they would basically all be putting out the same sound, no distinction from left, right, front, back. You're gonna want to use the digital optical connection for true surround sound. The speakers you linked to look like they are intended for a PC. Not sure if you could get them to properly work with a 360. You're gonna need an A/V receiver, or a set of speakers with built in dolby decoder and an optical input.