For those who want a starting point to mirror the entire repo from, i have placed an rzip'd (http://rzip.samba.org) copy of the repository in
ftp://gcc.gnu.org/pub/gcc/infrastructure/gccrepo.tar.rz It is 549 meg and expands to 8.5 gig. Before someone says "wow, just use rzip in subversion", well, it also takes 900 meg of memory to generate, you can't pipe files to rzip because it requires seeking, etc, and it would take 900 meg of memory and 2 hours to recompress the repository after every commit, so :) In 1.4, the repo size will be down to about 5.7 or less, expanded. I am still working on tarballs of a .svk/local dir for people.