gistfile1.txt

When installing on mountain lion:
installation: 
  brew install postgresql --without-ossp-uuid
  initd /usr/local/var/postgres
  mkdir /var/pgsql_socket
  chown <user> /var/pgsql_socket

edit /usr/local/var/postgres/postgresql.conf
  set unix_socket_directory to /var/pgsql_socket

  install postgres launchctl scripts (see brew info postgresql)
  "psql postgres" should now work

Installing postgis:

sudo brew edit postgis15
change all references of "postgresql9" to "postgresql"
brew install postgis15