At code4lib 2006 John Iliff of PALINET [1] and I discussed free software in libraries for an audio podcast. I had given a lightning talk on the topic "why libraries should support the Free Software Foundation [2]" the day before, and we touched on many of the same themes in a longer-than-lightning discussion.
Have a listen to the podcast here [3] and please consider supporting the FSF, or any other group contributing to the free and open source software infrastructure.
Links:
[1] http://www.palinet.org/
[2] http://fsf.org/
[3] http://www.palinet.org/rss/tech-conversations/