Mises.org have created a new ITunes University channel, here:
After taking a perusal, I found an introductory course to economics, by Uncle Murray himself, recorded on a Toronto student's tape recorder back in 1983. I haven't even listened to it myself yet, but I'm sure it will be much more than excellent.
Well done that man (or woman), who unearthed these rare diamond gems:
Here's a link to the first lecture on Mises.org:
Here are links to the 7 MP3 lectures, in sequence:
Here's the RSS Feed page, where the technorati can feed their iPod with these lectures (along with many other Rothbard classics):