Zeev, one thing I think we need to consider is Greenspan's tendency to over-react to future uncertainty.
In 1999 he was spooked about Y2K, and pumped and pumped. This time he could be spooked by Athens/9-11 anniversary and election threat (see Spain) /Iraq/ etc.
That might lead him to pump all the way through September or even October. It's not rational, but sometimes he's irrationally exhuberant with the printing presses.
I normally don't talk stuff like this, as I find it doesn't aid in my trading, but I was just throwing it out there to support a rise into November/December.