Well we took the plunge, cruising something we have discussed for ages but always said later on.
After much research we decided on the East-Bound Trans-Atlantic crossing, main reasons...found a very good fly/stay/cruise package at a great price. Also the Atlantic one place guaranteed not to get a Blackberry signal...so the bliss of complete relaxation.
We did approach the trip with some trepidation, because of the formal aspect but in some ways this made the trip somewhat special the chance to dress up and not look out of place.