.. I go slacklining every now and then. It's always easy to do, just walk to your local park, put up your 'slackline' and walk!
Here a little video I made of a session trying jumps and 360's. Cheers. Raoul
or go to: http://www.raoulcollenteur.nl/category/blog/2010/10/slackline-video/ if this video won't work..