I have a 2/0.5 Mbit adsl connection, so the bandwidth isn't really a problem there. Also you don't need bandwidth for keeping a browsed host open. I you think about it even if the host would go offline, the window would still be there.

And no I don't pause them, I only start two, then do something else while they download, and start the other by what I want the most. In case the host goes offline I have got what I wanted the most before that.