Hey guys, I just bought a new motherboard and it is an MSI KT333 Ultra2. It came with an S-Bracket. I don't have a seperate sound card. I was wondering, if the S-Bracket is good enough for a 5.1 Speaker system. Is there a need to buy a seperate sound card if I have an S-Bracket with my MIS Motherboard. Also, I was going to buy the Logitech Z640's on NewEgg for $70. Is this a good deal. What other good 5 piece speakers are there for under $80. Thanks for all your guys' help.