I have expressed a great interest in ACU (and their ilk's) foray into Web 2.0 education (see recent posts), and I have expressed some open skepticism on how they may make the relevance.
If you are interested in using technology to address educational content, you must check out The History of Rome podcast (don't click the link yet...you won't be back). Most of the entire podcast catalog can be found in iTunes, which is a nice way to collect and move to your MP3 player of choice.
I commend you, Mike Duncan. Engaging content that educates, engages and completely sucks me in!