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!"
They SHOULD ban cell phones on trains and buses! I hate being trapped and having to listen to some inconsiderate twat spout off about how their day was at a level that makes it possible for everyone to hear.
No one on the bus gives a shit about how your day was, so keep you mouth SHUT until you get within proximity to someone who does!
Point it: If I am trapped with you on public transit, you should have the respect for me that I have for you, that is not to attempt to centralize the entire world around yourself for the 20 minutes we are together.