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!"
Actually this isn't too expensive. 10 HD DVR's? The full monthly package with PPV would be about $90-150/month or more with some PPV selections. Actually if I could get 10 families involved this would be a sweet setup!