For court cases, there was a thread where several cases were mentioned. There was also the much discussed topic of whether testing an AC to a magus counted as scrying. This may not actually be determined in your saga/Stonehenge Tribunal, and so it might be a contentious case, perhaps the defining case of the Tribunal.
Also CJ did many (30?) cases in this thread.
What you don't mention is whether your players are new to Ars. If they are new to Ars, a Tribunal can be a bit daunting. And in any given tribunal that I've run, I've focused on one aspect and let the others happen in the background.