I have practices these katas:
http://www.ehow.com/videos-on_1720_a...en_gi-one.html
http://www.ehow.com/videos-on_7494_a...en_gi-two.html
Being a beginner these videos helped me to get started. I haven't seen my teachers or fellow students perform these exact katas, but practising them at home sure helped learning sword work in class.