IMHO 20-25€ per day sounds about right at first, but I'm sure with so much experience it would work out cheaper. Obviously depends a lot on whether you're paying for accommodation or stealthing. It's not hard to get a good meal out for 12-15€. You can easily make a delicious lunch of baguette, cheese and tomato for €1 per head. The sights, as noted, do tend to be expensive, but I found it was frequently unnecessary to actually go inside - I've been to the Palais des Papes in Avignon twice, but never been inside They do also charge more for non Europeans - you'd save aabout half on most admission by conjuring up some kind of fake European pass.

Oh, and yes, Vienna is lervly. Innsbruck is gorgeous. But then, most of Europe is lovely.

Steve