i was sitting on the upper deck for ufc 83 and i had a satisfying view (look in the octagon while they're standing up and on the big screens when they're on the ground). the atmosphere is electrifying, especially if you have a favorite fighter fighting in the event. i will personally never forget seeing GSP get his belt back, or the chants during that fight. I'd go to each and every event if i could. BTW, make sure to go to the weigh ins, because there are usually autograph sessions and you get to meet fighters.
Have fun and let us know how it went!