As title, I am trying to find a way to have 5.1 analog output on my Macbook Pro (late 08) without spending more than 100$, but getting a decent-good quality Anyone knows a product able to do it? -Usb audio card? -Firewire audio card? -Any digital optical to analog amplifier? I was not able to find any of theese products, so I am asking for your help guys Thaaanks!!