if your talking about systemlink then at minimum 2 xbox360 consoles and 2 copys of the same game
Yes, You need an internet connection because when you are on Xbox Live you are using the internet from your router.
Microsoft saw the need or gaming consoles coming into society, and seeing how well other consoles did, they decided to try it out as well.
You need to connect your Xbox with internet and Sign up
i don't think so, you would probably need a g-link router, which you can buy at like Walmart or something, you probably at least need close to 20 gigabytes of internet for xbox live. or your router distance has to at least be 154mpbs in order for you to have more than one xbox on your internet, hope this helps!
You need an Xbox, or Xbox 360, and an Internet connection for Xbox Live. No computer required.
If you are asking about setting up a game and playing head to head or co-op via system link, yes. Xbox live is not needed for that. The game will be hosted and played on the linked consoles. If you want to play other players on xbox live, you need to have xbox live. Linking your systems together will not allow you to bypass that.
Broadband
Yes you could because you will still need a guitar to play so yes. unless you want a wireless guitar
you don't need too, you can use xbox games on xbox 360
in my opinion it is ps3 because it has better graphics and my favorite games (Uncharted, God of war 3) are on ps3. Both consoles are not anywhere near as good without having an online connection and the PS3 Move and Xbox 360 Kinect needed updates to the older consoles for them to work. Games also need updates and the online connection makes it easy. If you have internet in you house the consoles should be connected
You will need to have an internet connection to have Xbox live. You can plug your xbox in with an ethernet.