I recently got hooked on Gaelic Football, combines all of the best aspects of Football, Rugby and Soccer. Sort of like Aussie Rules, but I think the Irish game flows better.
Saw some Aussie Rules on cable. Couldn't figure out what was going on. It looked like the torments of the damned -- players writhing in agony all across the field. Every once in a while a player kicked the ball through some posts and won a random quantity of points. Maybe if I knew the rules, I'd appreciate it more.