Ohioceltsfan - have a great time! I lived in Northeast Ohio from 2000-06, and have been to a bunch of Cavs games there against the Celtics. A lot of Cavs fans will probably talk trash to you, but remember 2 things:
1) Before LeCrabDribble arrived, their arena was a graveyard. 99% of their fans are complete bandwagon jumpers. Being a Cavs fan is now "cool." I was at the game in the '04-'05 season (LeCrabDribble's 2nd year) when the Celtics came from behind, forced overtime, and eventually won (led by Glove, Waltah and Pierce). The game was on a Saturday night, and literally THOUSANDS of Cavs fans LEFT THE GAME at the end of regulation. I'd never even heard of this before. And it wasn't like it was a school night...
2) When in doubt, just remind them of the most important stat: 17-0. And ask why they have an Eastern Conference Champion banner hanging.
Lastly, gotta mention the refs. If the refs don't completely hand the game to Cleveland, I like our chances, whether KG plays or not. Big Baby and Perk will have to dominate inside like the last game. This is my fear though - David Stern will see to it that they both have 3 fouls in the first 6 minutes. And don't be fooled, this is a very big game for us in terms of beating out Orlando.