I'd recommend the "Off the Hook" podcast by Emmanuel Goldstein and the HOPE recordings available for download via the 2600 website don't really do podcasts muc

I'd recommend the "Off the Hook" podcast by Emmanuel Goldstein and the HOPE recordings available for download via the 2600 website don't really do podcasts much myself, though. But these did keep me mildly entertained/informed a while back (esp. the HOPE conference about coupon hacking)