I love Arch linux and have been using it for a few months now. When I started, many of the mirrors I used were slow or would go offline and/or out of date. When I saw an offer for a VPS which should allow me to host a mirror of the archlinux package archives, I snatched it up. If you run arch, you can point pacman at my server by adding this line in /etc/pacman.d/mirrorlist:
Server = http://archlinux.surlyjake.com/archlinux/$repo/os/$arch
I threw together a quick page showing some general stats for the server which you can view at http://archlinux.surlyjake.com/.The server has been added as an official Arch Linux mirror, but is not in the pacman-mirrorlist package (I'm not sure what the process for that is).