Example for getting all the Ubuntu Breezy Badger files at stellenbosch, using the debmirror package:
debmirror -p --nosource --host=ftp.sun.ac.za --method=http \ --dist=breezy,breezy-updates,breezy-security \ --section=main,restricted,multiverse,universe \ --root=ftp/mirrorsites/ubuntu.com/ --ignore-small-errors \ --ignore-release-gpg mirrordir/
mirrordir/ is the target directory for the mirror.