dude, just use that. go to radioshack and get a mini-stereo jack (headphone) to female stereo RCA jacks. plug the headphone side into your PC then just run a regular pair of RCA cables (red and white) to the receiver. then run your HDMI from your PC to the receiver and another hdmi from the receiver to the TV.
all set without spending money on a soundcard that is basically going to duplicate what your receiver was going to do anyway....
Couldn't I just use a coax cable and run it from the SPDIF Out jack on my X-Fi and then run that to the Coax Digital In jack on my receiver?THIS
is my soundcard which has the following connection options:
Headphone output with volume control knob (1/4-inch / 6.35 mm stereo jack)
Shared line in / Hi-Z in (1/4-inch / 6.35 mm stereo jack)
Shared line in / Microphone in (1/4-inch / 6.35 mm stereo jack)
Shared Auxiliary line in / Phono in (stereo RCA jacks)
Connection to Creative analog speaker systems for volume control (replaces the wired remote control or audio control pod that comes with the speakers)
MIDI in and out (two standard MIDI din connectors)
Optical SPDIF in and out (two TOSlink jacks)Coaxial SPDIF in and out (two RCA jacks)
Connection to Sound Blaster X-Fi sound card (26 pin)
Alternately I could run an optical cable and do the same thing but I've read that Coax has a higher bandwidth.