Xbox Live Game Bandwidth Usage Study

I've had an idea brewing for a bit but I need some help in order to complete it. My idea is to use my laptop computer to measure the bandwidth used by Xbox 360 games, on a per game basis. I figure that since my internet connection bandwidth is more than enough to be sure that it won't be a bottleneck that I might actually be able to pull this off and be fairly accurate about it.

My idea is to use my laptop with internet connection sharing to connect my Xbox 360 to Xbox Live. I have a USB to Ethernet port and the built in ethernet port on my laptop. I would just need some software that will allow me to track the individual bandwidth usage of a single ethernet port. The best I've found is AnalogX Netstat Live, but it lacks the ability to track over a specific time period and the ability to export more specific stats. I would be welcome to any ideas on a software tool to use to do this.

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