Using Ubuntu 9.04

vlc-plugin-pulse -this also pulls in a lot of libs that vlc will need
xmms2-plugin-pulse -this also pulls in the xmms2 core
pulseaudio-module-lirc - this is to use lirc and your infrared remote with pulse
libsdl1.2debian-all -this wil replace the alsa version with all available drivers
lib32asound2-plugins -this is the 32 bit plugins for 32 bit apps
libao2 - you need this for apps using the libao cross platform library
asoundconf-gtk -applet for default alsa sound card
audacious-plugins-extra -plugins for audacious for many codecs like MP3, aac, FLAC, WMA, etc

For Gigabyte board

1.) Right Click on "Speaker"->"Open Volume Control". Click on "Playback" tab then select "Preferences" check mark "IEC958 Default PCM" switch.

2.) add to /etc/modprobe.d/alsa-base.conf

# added for ALC889A sound card
options snd-hda-intel model=6stack-dig

3.) install ubuntu-restricted-extras - installs almost all the codecs and java and flash 10.0.22.87 and a bunch of other stuff. Then reboot