Your MSI K9N2 SLI Platinum has a built in 8.1 channel sound chip. All you really need to do is install the sound drivers from the software CD that came with the motherboard.
If you're motherboard came with a built in chip, you don't need to buy one.
Unless you are totally into music, editing, mixing etc. you won't really see the difference between built in and a PCI card.
Your MSI K9N2 SLI Platinum has a built in 8.1 channel sound chip. All you really need to do is install the sound drivers from the software CD that came with the motherboard.
I went with the cheaper X-140. WOW what a difference in sound! I've been listening to the tinny speakers in a laptop for years amd forgot what real sound is like!
Thanks again guys and special kisses to "Rooster" for the speaker suggestion!