I for one love mp3’s and podcasting – I have worked a shift rota for the last several years and miss out on a lot of talk and sports shoes which I podcast. Applying this to Cisco studies I have found a number of really good links for those that do not get to Cisco Live\Networkers, or product releases, etc.
Cisco Switching Podcast Series:- http://www.cisco.com/en/US/prod/switches/networking_solutions_products_genericcontent0900aecd805f25cc.html
Cisco Data Center Podcast:-http://www.cisco.com/cdc_content_elements/podcast/index.shtml
Cisco Technology Podcast:-http://www.cisco.com/en/US/products/products_technology_podcast_listing.html
Cisco SP360 Service Provider MP3 Links:-http://blogs.cisco.com/search/results/10157add726c281567ef60c7f9a41b0a/