My favorite is Security Now. It makes my 45 minute commute enjoyable.
Here is my updated subscription list. Its good enough for at least one 1 hour workout every day. I enjoy the CNET podcast the most, but wouldn't mind if Tom (?) stops interrupting and deflating the other hosts' comments. Yes, he has some good points, but he tends to discount their thoughts.
All CNET audio podcasts
Geek tech live
NPR: technology podcast
PCMag after hours
Wall Street Journal tech news briefing