For the record, I too, have a cable connection and could seed a torrent for a while as needed.
Secondly, I think there might be something to the suggestion of using SkyDrive or Google Drive to distribute the files. This can easily be shared and SkyDrive has 25GB for legacy members like myself.
Another interesting note, for those without Blu-Ray burners, you can split a blu-ray disc at full quality onto multiple DVDs and still get full HD quality as long as you have a Blu-Ray player for your TV.
Here is some information on how to do this. I don't have a blu-ray burner so, this is how I plan to burn and watch the movie, while keeping the HD quality.