Plug the chord of an SPECIFICALLY XBOX BRAND headset into the bottom controller.
connect it using a USB cord ...
Headsets for the Xbox 360 range from $10 to $60. The cheaper versions tend to be wired and are not manufactured by Microsoft. The more expensive headsets are wireless.
Unlikely, but i do know that there is a wireless receiver for computers to pick up wireless controllers and headsets.
There are many companies who make headsets for xbox 360. Here are only a few headset companies I know of: Turtle Beach - The best headsets available Venom Tritton
Yes.
no
Yes
No, xbox 360 headset can only work with the 360.
Some brands of microphone headsets for the Xbox include Sennheiser Over the Head headphones, and Turtle Beach Ear Force X41. Other headsets that work with the Xbox includes Mic earphones, and KMD 360 Pro Gamer.
You cant connect to Xbox Live through your PC. You will need to connect straight into your modem, or either use a Microsoft Xbox 360 wireless adapter to connect through your wireless network.
Elder Scrolls: Oblivion doesn't have any online multiplayer, so you don't connect to xbox live through the game. However, there is downloadable content on the xbox live marketplace, which you access through the Xbox Dashboard.
Yes, there are many brands for that. One brand is called Turtle Beach headsets.