Rich... There aren't any worries. I'm sure you could jump in with pretty much anyone if you don't come up with a buddy you were planning on rooming with. I was in the same boat to start with and there are/were many options open. At the worst...I know the place can put a roller in the rooms to accomodate 3 people. That brings the cost down even more!!! Get it together and make some plans to go. I'll take the roller if need be.
