Portable Internet utils for locating the fastest sites

There will be some SF mirrors that are faster than others for you. You can usually find them and pick them and SF will remember your choice. But, ultimately, a torrent would be faster for a file of that size if enough people are sharing it. HTTP connections from mirrors are usually limited to a maximum bandwidth per connection as well as limiting the number of download connections per user to prevent users from consuming more bandwidth than they should and slowing others down. With a torrent, you're download bits from a dozen or more hosts at once with it auto-selecting whichever ones are fastest. In the case of Knoppix, you should use torrent for that, too.