Absolutely. I use the Audigy 2 (Value). If it was not for them, I'd be using onboard sound.. which isn't all that bad either... but not even close as good as the Audigy 2.
yeah, but just imagine how good it will sound. You'll be engulfed while watching a movie. The more, the better. Since 7.1 is a possibility now, I hope Logitech will come out with a 7.1 surround system, THX or course.
I don't know. I'll have to try it one of these days. It's like having 4 surround rear speakers. My sound card supports it, but my current speaker setup is 5.1 which is still very nice. Could be better though.