download the updates from the official xbox 360 website then burn them on to a data disc then put the disc into your xbox 360 and install the updates.
Updates will need an internet connection. You can just hook up your Xbox 360 to the internet, sign up for a silver membership and you will get updates.
Xbox 360 has updates called Title Updates. As of July 26 it ranges from TU1 to TU39.
Yes, there are several xbox games that can be played on the xbox 360 and several more if you login to xbox live and download the updates for your xbox 360.
An Xbox 360 Costs at the moment $299.99 i believe they used too cost $100,000,000
No, but if you choose not to install them; it will not let you play xbox live.
$200 for Xbox 360, $400 for Xbox 360 Elite
$360
An XBox 360 Pro costs $300 in Canada...
Yes but not much more
Depends on what is wrong with the Xbox 360.
You have to download a few updates to do so. Also if the updates are too big you will have to buy a bigger hard drive.