I think I saw on airfarewatchdog flights from New York to Dublin for $479 in June.

Also found this in a blog, hope it helps:
There's no telling how long this will last, but a good strategy for crossing the Atlantic by air this spring and summer is to fly Delta from JFK to Shannon, Ireland. Currently, we're seeing fares on this nonstop route in the mid-500's, with tax, for June travel, and about $680 RT with tax in July. From Shannon, you can hop onto Ryanair and travel to dozens of places in Europe for as little as $1 plus tax each way. Yes, those deals are limited, but even Ryanair's normal fares are dirt cheap.

You can come to Tropea in Calabria,
there are cheap flights from London to Lamezia Terme with Ryanair
I can suggest very cheap accomodation.

A package (as mentioned above) might be the best way to get your air & hotel for an affordable price) have you looked at Gate 1?

http://www.gate1travel.com

Go on a cruise! All inclusive.