the octagon has alot of potential, but as it is its a little boring
here are a few cool ideas to spruce up the ufc fights:
1) an electric fence
-the cage wires will have a low voltage current running during the fight. this will "encourage" fighters to not hold on to the cage or grab it with they toes like i see in some fights when the ref warns them. it will also make randy couture style strategies of pushing your opponent up against the cage more useful and painful for the opponent.
2) this will require a more advance technology, but it is possible...
seal the octagon and make it a zone of zero-gravity!
this will make for some cool fights because fighters wont be restricted by only one plane of motion.
any other ideas??