Oceania has a very good online reservation system. It allows you to price/ book cruises and shows specific cabins available by category.

I just priced the Insignia 7/26 Venice- Barcelona 14 days cruise. If you decline air for this itinerary they'll give you a credit of $1,000. In addition, the Air taxes that you don't pay are $524. IMO, an economy ticket EWR-VCE, BCN-EWR for $1,524 is high, especially since you are at Oceania's mercy for routing.

An A3 concierge level balcony cabin with no air is $3,999 + 364 Govn't taxes. Not a bad price.

I didn't price the PH suites as these are not participating on the sale for the summer 2009 cruises.