I did nothing to the installation.

For the audio:
My speaker set works with SPDIF in, or with standard 1/8" RCA. I generally use only the SPDIF, but I tried the 1/8" plug and that worked.

For the NIC:
I used an old 3COM 590 PCI NIC that I had lying around. So, I currently have 3 NICs in my PC. 2 that are built into my main board that are totally unused, and the third that I added in just to try out the distro.

If I had the Linux experience, I could probably work through the tools to recreate the CD with the appropriate drivers from nvidia...but I'm lazy.