I'll have the game, and I've got a cable modem on my computer, but my Xbox is in another room. If I knew how to hook it up and play it using my computer monitor instead of the TV, I'd be more than happy to play you.
1) I would get a Linksys or netgear wireless hub. and have your Xbox live hooked up to the Linksys wireless game adapter to your Xbox. I got both from Walmart.