Not for software updates. You have to pay for an xbox live gold account to download games, play games online and use netflix. Xbox live gold accounts cost $49. 99 (as of 9/18/09)
If you want to play against online players, you must purchase a Gold Subscription from Xbox, which costs $50 a year. You will not, however, need to purchase an additional internet connection.
yes you do. you must setup up an Xbox live account in order to go online,purchase points too to have any of the features available for additional content you may want for a certian game.
You do not need to pay for your internet connection on the Xbox 360 console. You will need to have an internet connection already in your home in order to connect online. Xbox live does cost money, but you can purchase subscriptions before you log on. These are available in cards that can be bought at any game store.
