Start with Part 1: Dynamic Microphones for Podcasting (22 min, Curtis Judd), then ZOOM LiveTrak L-8 For Podcasting (22 min, Curtis Judd). All 3 lessons here are free, from the teachers' own official uploads. You'll need usb podcast microphone, boom arm, pop filter and a few more basics (about $225 of kit). The book to keep beside you: Podcasting For Dummies by Tee Morris.
What you'll need
USB podcast microphone: Broadcast sound, one cable.