I have a multitude(7 and growing by the month) receivers from the glory days of home audio, late '70s to the early '80s. This includes Pioneer, Sansui, Onkyo, Harmon Kardon, etc. All I need is a decent sound card to route to one of the amps via a 1/8in plug to RCA. Anything more than 2 channels is a complete waste, so no expensive 5.1 or 6.1 setups. My audio current setup consists of a decent pair of $550 JBL speakers fed by 65w each and then 2 12" Adire Shivas each fed by a 350w plate amp. I know that no sound card will ever do this setup justice, especially when I upgrade to some high end Sansui towers, but I want to listen to my mp3s when the desire arises. Anyone have any suggestions with links?