IGX

http://itunes.stanford.edu/

Downloadable lectures for your Ipod-- all free AFAIK. Some may be worth a listen on your commute.

Lots of other lectures at iTunesU at the iTunes store. You can get there through the above site or go directly thru iTunes.

Groovy.

I'll check that out.

We are taking a long road trip so I may have to download a few lectures and upgrade to a bigger iPod.

Thanks.