hey pedal wench, you should seek out a way to donate a little blood to sign up for the registry. you can probably find some info that will direct you to the right place here. http://www.marrow.org/HELP/index.html
some registry events use cheek swabs but i think most do a blood draw, and doesn't take much blood for them to register you. and thanks for asking, the more folks registered, the better the chance for matches!