Well, you will need a good sound card for good audio quality, the question is which one. Personally, I cannot stand Creative so I'm ignoring their cards. They had the nerve to charge for drivers, even to their high-end products. They've stopped doing that, but it left a very bad impression. Anyway, I have the ASUS Xonar D2X 7.1 Channels 24-bit 192KHz PCI Express x1 Interface Sound Card
. This is a pro-sumer card geared towards audio creation, audiophiles, and home theater. It has multiple audio inputs and all the Dolby technologies built in. Since I wear AKG's K-701 headphones all the time, which are reference headphones that take a great deal of power to drive, I like the built-in headphone amp and Dolby Headphone. The card is impressive but does have some flaws, first, if you're in a dark home theater environment, the LED backlit ports are very bright, second, the drivers are stable, but they aren't revised very often, third, it isn't a gaming audio card so don't expect frame rate increases or hardware EAX, fourth, and finally, if a program crashes while playing audio through the card, the audio loops back the last second of sound until you disable then re-enable the card. The price for it is expensive, but you get a solid sound card plus a suite of audio creation tools. If you need the standard PCI model it is the Asus Xonar D2 Ultra Fidelity 7.1 PCI Sound Card
. It's the same as the PCI-Express X1 model, the D2X, but in standard PCI form that doesn't require a direct power connection to the power supply. There are less expensive models, like the ASUS Xonar DX 7.1 Channels PCI Express x1 Interface Sound Card
, but it doesn't have coax nor the interference shield. You can also try the HT | OMEGA CLARO Plus+ 7.1 Channels
is also a nice card, but you should have a receiver if you use the digital audio input.