shoegirl, glad to be of help.
Believe me, you DON'T want to change money at an airport!!! If you must change money (as opposed to withdrawing it straight out of an ATM/credit card machine), do it at a local bank... not near tourists.
Also, I don't know if you already have this, but I found it invaluable to have Lonely Planet's "Europe on a Shoestring" packed with me for the whole trip. I tore out each country's section as I went through it (I went through 11) to lighten the load, but it may help to have something like that for when you get stuck without accommodation and need a hostel phone number quick. LP rocks!
Bon voyage! Let us know how it goes.