Preferably from a Reformed/evangelical perspective, although I can negotiate on that.
I like/have vaguely heard or read things by Don Carson, William Lane Craig, Martin Lloyd-Jones, RC Sproul (senior, not junior), John Piper, and... well, I'm not really in the podcast loop. People like that. Nothing too fluffy, but not absolutely dry either. Anything on Biblical archaeology, worldviews, topical stuff, exegetical stuff, debates, theology - whatever. If I can listen to it while knitting, so much the better.