I am a big fan of This Week in Tech, MacBreak Weekly, and The Apple Phone Show. They are all excellent podcasts that are have very high production standards.

What I'm most impressed with is the sound quality of each of these shows. I think that Leo Laporte, the host of TWiT and MacBreak, and Scott Bourne, the host of The Apple Phone Show, each have tremendous backgrounds in radio and TV program production, so they've had time to figure out what equipment and services work best.

I decided to do some research and see if they had ever published any how to articles on the craft of podcasting. Here's what I found:

• PodcastGearGuy.com: Scott Bourne has a blog on the subject of podcasting equipment and software called PodcastGearGuy. This blog hasn't seen a lot of entries since he started hosting The Apple Phone Show, but it makes good recommendations about semi-portable sound isolation booths to help you get clean audio, and digital recorders which podcasters use as backup devices when they are doing a multi-person podcast recording using Skype.
• TWiT's "Podcasting Equipment" Article: Leo Laporte does a good summary of the technology and services he was using during the mid-Summer 2006. I hope he updates this article if he changes his setup. From occasional mentions of different gear in his podcasts that I've listened to during the past few months, it seems like the setup he describes is pretty up-to-date.