Re: Wireless laptop with xbox live
Under network connections, I believe there is an option to set the computer you're using as a "gateway" for the xbox, or any other device.
On your pc, if you go to network connections and right click on your wireless connection, then click properties. Here, there should be two tabs at the top, networking and sharing. If you select sharing, you can check the box next to allow other devices to use this computer to access the internet. Not sure if this will do it for you, I'll star the thread though in hopes that someone else could shed some light on this.
*EDIT: keep in mind, this will probably be slower than crap and you won't have a very nice xbox live experience.
**Official Self-proclaimed glorified excessive (insert additional adjectives here) post editor/modifier.
Edit = Best feature ever