I just recently bought a laptop and was wondering if it is possible to hook it up to my friends computer who has broadband internet connection. and how i would go about hooking it up.

also i bought a pci lan card because i thought my desktop did not have one but i did so i have an extra one and was wondering if there is any software out there that allows me to turn my friends computer into a router so i can connect his broadband into one lan card then take a cable and connet from the second lan card to a lan hub. then connect his xbox and my laptop to the internet at the same time through the hub.