PLEASE HELP! I'm trying to do this exact thing, and I cant really tell what you all did to get this to work.
In my case:
I am receiving internet to my laptop from my at&t 3g wireless device. (So I have no MODEM that could provide a connection to a WiFi router)
However, I must have a Wifi Router, as my PS3 and Apple TV require it for internet access. Direct Ethernet from these devices to the laptop is not possible or feasible.
So...I must get a Wifi Router internet access from my Laptop some how. Obviously by the ethernet port on my laptop.
Now, How to do it. What kind of ethernet port cable. CAT5 or Crossover. I am running Vista, what do I need to do in my networking settings. I am clueless on this part.
I greatly appreciate any help or advice or even a suggestion.