Just a little bit of advice on getting the best value.
As usual you are ripped off in Ireland, so here is what you do. You can save 50% or more if you do this. Works for all cruise lines.
Get your price on the cruise lines American website.
Check for flights on the dates you need (fly over the day before, and home later on the ship returns - they are always on time.)
Ring up the cruise companys US office and tell them you are interested in the curise and tell them you want to pay in Dollars. They might tell you you have to ring their European agent (where it will be twice the price) but insist and say you will not be ringing them you will just go to another line who will let you pay in dollars. Ask to speak to a manager.
When the cruise is booked (just pay deposit for now, or get them to hold it until you get the flights booked), then just book your flights and hotel yourself.
The markup from the travel agents here is unreal. Avoid them.
You will hear all the crap about not being insured etc. Just call your insurance company and clarify.
Example
14-Day Greek Isles, Adriatic, Greece & Turkey Round-trip Venice
Ship: Norwegian Gem
Departs: Venice
Departure Dates: 2010: Aug 14, Aug 28
Ports of call: Venice; Split; Corfu; Santorini; Mykonos; Iraklion; Dubrovnik; Athens (Piraeus); Ephesus (Izmir); Nafplion
Balcony Room
US Website : $3,379 NCL.COM
UK Site : £2472 $3900 NCL.co.uk
Irish Site : €2762 $3795
www.cruiseholidays.ie
Thats cruise only from all 3 sites.
If you add flights from Dublin to Venice you can add another up to €1000. Flights to Venice are cheap. Book them yourself. Those prices are Per Person too. So for 2 people double the savings.