Recently I have been listening to the Linux Radio Show archives and found them quite enjoyable.
Unlike other Linux radio shows these English guys are not so serious and often are fairly brutal about their opinions which is good to hear. Sometimes you also get the feeling they have been smoking something beforehand which just adds to the atmosphere...
Linux Radio Show Homepage
This archive show is quite interesting as they interview Miguel de Icaza, lead developer of Mono and a high up in Novell after their purchase of Ximian in 2004.
David Harrison's musings on collaboration and I.T.