RE: IEAI doubt very much that they would let Greece go. If they do they will have several other countries line up. They will probably do all they can to keep the Eurozone together. That's not saying that it won't eventually break up, but that may be several years down the road.
The US has already started to prep people to the idea of QE3. It's probably going to be clear by Aug and the markets should react well.
I would not be surprised though that we still have a hard time in the very short term.
JMHO
P-Air