Spending money for two weeks in Europe?

I'm going to Europe for two weeks with a girlfriend of mine and our itinerary is as follows: four days in Paris and the remaining ten in Italy (Venice, Florence, Capri, Rome). All travel/accomodation expenses will be taken care of before we leave NYC (hotel/hostels/airfare/eurorail p). If I want to go to the museums/tourist attractions, food/drink, and some shopping is $2000-2500 USD enough, and how much is that in Euros. Only serious answers wanted, no comments. Anyone who has recently been to these places would be a GREAT help. Thanks!