Here's a script to get most of the isos via the bittorrent client 
rtorrent:

tors="
http://releases.ubuntu.com/9.10/ubuntu-9.10-alternate-amd64.iso.torrent
http://releases.ubuntu.com/9.10/ubuntu-9.10-alternate-i386.iso.torrent
http://releases.ubuntu.com/9.10/ubuntu-9.10-desktop-amd64.iso.torrent
http://releases.ubuntu.com/9.10/ubuntu-9.10-desktop-i386.iso.torrent
http://releases.ubuntu.com/9.10/ubuntu-9.10-server-amd64.iso.torrent
http://releases.ubuntu.com/9.10/ubuntu-9.10-server-i386.iso.torrent
"
wget $tors
rtorrent *.torrent

Place in a screen session, disconnect, and wait.

Regards,
- Robert


Presumably you would do this from a directory that contained no .torrent 
files when you started.  Also, you should delete the lines that correspond 
to files that you don't want.

Mike