No life, no girlfriend and the shittiest console ever made.
You need an Xbox, or Xbox 360, and an Internet connection for Xbox Live. No computer required.
Yes, a membership is required for Xbox Live features to work for the console and account.
Yes. You can purchase the disc and no Xbox Live is required.
You are not required to be on xbox live. Although you get a free month when you create a profile, it will expire. If you don't buy xbox live you will not be able to play online, be in xbox live partys, or get access to content on xbox live like game demos, add ons, videos, and music.
Call Xbox. It can be a variety of things.
Unfortunately not. An Xbox LIVE account is required in order to purchase Dashboard Themes and much, much more.
Xbox live points (Microsoft points) are used to buy things in the Xbox live marketplace. Such as game add-ons!
Yes. An Xbox Live Gold Subscription is required to play Halo 3's multiplayer.
Downloading it. Xbox Live is required.
No, in order to play on Xbox Live over the internet, regardless of ISP, you are required to have an Xbox Live Gold membership, or else you cannot play Xbox nor Xbox 360 games over the internet.
If your not connected to Xbox live, then press the guide button, then click Join Xbox live, and fill out the information required, then when it comes to the payment options, click redeem code.
No, not even gold members are required to own that.