Previous answers refer to previous versions of Ubuntu.
I'm having the same issues and dislikes with Pulseaudio in Natty as I had with previous versions of Ubuntu, so I want to replace it with something else.
I'm looking for references to step-by-step instructions by someone that succeeded in the replacement. ALSA or OSS are fine.
I don't care about the loss of integration, because it can be patched. I just want the (for me) ill-behaved pulseaudio out of my system.