I am trying to put together a kind of home theater in my room. I have ATT Uverse STB and want to get the sound from the STB to my computers sound card (which i need to find one that will do what i need) via SPDIF then get decoded and passed out to my 5.1 Altec Lansing Analog Speakers via 3.5mm (1/8") jacks. I need to find a sound card that will receive SPDIF, decode it and pass it out through analog with minimal latency and preferably all done with hardware. It needs to cost less than $150. Any need for clarification just ask...sorry if something doesn't make sense but i will be happy to explain what i mean.