Very strange thing happened. I downloaded the Planet Pack with GetRight, and it became a corrupt, invalid zip file. I then downloaded it without GetRight, and it worked fine. Very bizarre.
When I used GetRight it downloaded at 12 KB/s with one download and with three simultaneous downloads. When I downloaded it without GetRight, it downloaded at 13 KB/s. This is what I predicted. The total bandwidth for your server at any given time will be ~12 KB/s. I suggest you try and get a test set up where you have 10 or so people download the files at the same time. Make sure some use various broadband connections and some use dial-up modems. If theay all get ~1.2 KB/s (or some other small number), then I'm right. If they get better downloads, then I'm full of hot air.
And about being on the other side of the continent from you, that is most irrelevant. So each stream of data takes 2 billionths of a second to reach me instead of 1 billionth. Big deal.
The part about annoying younger siblings eating up your bandwidth makes perfect sense.