There are no major positions being taken ahead of the Fed. I think people are just being very short-term oriented - you see a stock that has a good story and you invest. But you do have to be careful - you don't want to overstay your welcome in any stock.
I do believe an investor shouldn't change their philosophy just because it's post-Fed, ... I think the aggressive, more short term oriented philosophy that has worked the first seven months of the year will still be the philosophy until that strategy is proven to be wrong.