Packet Pushers Podcast (http://packetpushers.net/) - Roundtable of network engineers talking about the week's happenings in the networking industry
Tech News Today (http://twit.tv/tnt) - Amusing daily look at technology news from different sources, quite professionally done
vChat (http://www.vmwarevideos.com/vchat) - Fantastic discussions about VMWare
Wireless LAN Professionals (http://wirelesslanprofessionals.com/category/podcasts/wlw/) - Helps me keep up with wireless technology in the enterprise
What other podcasts do you recommend? Tell me on Twitter @swackhap!