Check out these links! They're awesome!
Http://www.rscs.net/~je2521/rats
Home
www.spoiledrattern.com
www.spoiledrattern.com/breedframe.html
Http://jorunhoo.home.online.no
http://home.iag.net/~ks4iq/rats.html
www.btinternet.com/~sara.j.gibson