I have an e-mu 1616m Laptop Digital Audio System CardBus PC Card. The external module includes S/PDIF and Optical In's and Out's. Awesome surround sound.
I also use the laptops firewire for digital video from my 3ccd video camera. I's quite amazing actually. I don't know what I'd do without it.



I use them both on my laptop all the time. Firewire for drives and digital video, and the spdif connector for attaching my laptop to my sound system. I think I only have one component that's not optical for sound in my system. Stupid old VCR, I tried so hard to lose the vhs tapes in the move, but she found them. There should be a law, if it's on vhs, it should be on dvd. 
