Since alsaconf was dropped as a alsa configuration command I’ve missed some way to select which soundcard I wanted to use, I’ve found asoundconf that lets me do it, it’s simple (tested in K|Ubuntu dapper):

apol@gran:~$ asoundconf list
Names of available sound cards:

We see the list of cards we have, here we have in first place the default one I’ve set, after the integrated one and then the webcam’s mic.

If we want to change the default, it is as easy as doing
asoundconf set-default-card V8237

I hope someone will find it useful. Bye!