My podcast gear kit:
And these are the headphones I use--although pretty much any over-the-ear set will do.
Sony MDRZX110/BLK ZX Series Stereo Headphones
A (very) inexpensive boom arm. (This minimizes desk bumps and other noises.)
For interviews and solo podcasts recorded on the go. Great little lav mic that can be used directly with an iPhone or iPad.
My favorite new toy! The sound is phenomenal. Zoom H6 recorder.