Can anyone tell me if I buy a home reciever with digital and optical inputs that it will give me the 5.1 channel surround my computer has. If have a Soyo Dragon Plus with the onboard 5.1 cmi audio. Can I just use the optical or digital outs to give my reciever the 5.1 signal? (I will be buying a reciever that has 5.1 decoding) Thanks.