I have one TI Benchmade Balisong, waiting for when I'm done learning and a Bear MGC Balisong for learning. I love working with it. I do a lot of driving in town, so I practice in the cab of my truck a lot. My favorite opening is one where the balison is actually spun around the outside of your thumb, completely free of your hands, then caught and finished with the opening. It looks wicked. Heres a nice site for more vids and instruction.
http://www.balisongxtreme.com/techniques.htm