That setup is great. I know you were in chat last night but I was in and out.
I am left wondering if you disabled the onboard nvidia chipset in bios?
Onboard video is disabled.
The only problem with the setup is the sound distortion I'm getting with digital output and some slow-down/choppy video with high bitrate encoding. This was _not_ a problem with 0810 or without digital audio, so I am guessing there is a alsa/pulseaudio issue, but I can't figure it out.
Here's the link to the diagnostics I've acquired so far in 12.04: https://answers.launchpad.net/ubuntu/+source/alsa-driver/+question/195585.
I've previously sent you a bunch of diagnostics from the 10.04 build, but the distortion in sound is identical. I just got in some optical links, so I'm going to try to bypass the HDMI tonight and see if I can get clean sound out that way. However, I think it's a driver issue, as I'm getting the distortion even on the headphone out via front panel.