PPS: You're going to have a great time. When you have it narrowed down to some countries and have a few ideas of things you might like to see or do while over there, and a rough idea when you're going, come back here and people will be more than glad to help. Since this is the 'budget travel' forum remember to ask for whatever advice you'll need on inexpensive overnight accomodations and intercity travel while on the continent.