its the same as diy polishing anything else
remove
clean
apply abrasive compound (aka sandpaper) whatever and fuck it up
apply polishing compound and work it in
for tools, you use your hands, arms, maybe a dremel, and some common sense. it's mad work.
oh and google works great too
http://george-novak.com/brakes.html
http://members.aol.com/InjuneerZZ/BaerPoli.htm