Thomas: I am a proud, open-format loving leftie. The only mp3s I have on my music server are, ironically, illegal, copyright-violating mashups.
I admit, though, that I have something like 102 .doc files on my HD. Sorry :/ I continue to argue that we should at least provide Open Office at work, following the principles outlined in our own Roadmap for Open ICT Ecosystems, but it is an uphill battle.