Went on a cruise in April, 2002 on Silversea for ten days from Athens to Venice via the Greek Isles. Fantastic trip---no tipping, open bar throughout the ship, large cabins, excellent food and superior service. Only 385 passengers. We got a fantastic deal since it was soon after 9/11 and all the cruise lines were scrambling for passengers. If you can get an interline deal, it will still be expensive but you won't have a bar bill and, remember, no tipping. If you can afford it, I'd do it .