I am just starting to look at getting speakers for the computer I just built, all I have now is just two old crappy speakers. I have heard good reviews for the Logitech Z-560 speakers, and have found them at a good price (~$120 shipped) but they are 4.1. So my question is... how does a 4.1 system compare to a 5.1 system connected to a PC for playing DVD. I have C-Media on my motheboard (Asus P4B266) which will output 2/4/6 channel analog audio, and my Video card (AIW Radeon 7500) can output digital through the SPID/F connector. Does the 4.1 system create a simulated center channel? I don't *need* 5.1 of course since it's just for the bedroom, and I like the price of the Z-560 system. Is there any reason to really stay away from a 4.1 system? Since I haven't actually heard a 4.1 setup I just don't know how it would deal with dialog and surrounds. I realize the the C-media will be creating the 4 channel output, but I'm just not familiar with how it works. The Z-560 does have some mode where you can input 2 channel audio and it will create the surround effects, but again, how is the center channel/dialog handled. If anyone can give me some insight I would appreciate it.