I've got a regular 1/8" plug style mic that absolutely sucks nuts. It's a freakin magnet for noise, but it's 10 bucks and I guess I'm getting what I pay for. My question to you is, what's a decent, noiseless mic for PC or mac, either one. It could be USB if those are better, but I just don't know whats out there. Thanks in advance!
Try asking in the pit...many there know computers well...

Musicians Friend has some USB condenser mics but I dont think they work too great.

If you are looking to record audio, (like a guitar amp...) look into the Riffs & Recordings form.

If you just want a good mic for online chats, the pit is best to post in.