Let the hive mind of Engadget get that for you.
"I've found myself using my PC for a lot of conversations lately, and I'm also considering recording a podcast to share with anyone who will listen. There are tons of USB headset / microphones out there, and I'm hoping someone has some solid recommendations based on experience. I'll consider both headsets and standalone mics, by the way, but I'd like to keep the bill under $100 if possible. Help!"
And for my third and last comment...EVERY post you make on Engadget includes a link to your blog, and none of the comments are very useful. Seriously, if you're going to advertise, click the "advertise" link and purchase some nice banner ads.
There's enough spam on the internet without having to read it in a blog.