Let's say you have a computer, running Windows XP, and you've got two network cards in it. You want to set up one network card to connect to the router attached to your cable modem so that the computer gets Internet access. You want to set up the other network card to connect to an existing LAN and be able to access all the computers on it. However, you also want to set up this computer so that it can provide Internet access to all the computers on the LAN. How would you go about this?
Also, once I get my financial aid situation striaghtened out (don't ask how badly that's going for me), I may decide to get a refurbished laptop for me to use at school and at coffeeshops. (Thankfully I get free access at the big local coffeeshop chain.) I've never learned that much about notebook computers, though, and one of the things I'll want for this notebook to do is to have an input out to an ordinary television screen. Is this something that is usually built into a notebook? Is this something I'd need to buy something special to do?