I recommend opening an account with a Dublin stockbroker and instructing them to buy a range of Irish bank stocks.

Fexco Stockbrokers (www.fexcostockbroking.com) will buy and hold the stock for you (secure) and their charges are the most reasonable in Dublin (cheapest).

For what it's worth I think Anglo Irish are the cheapest of the Irish banks at the moment but DYOR. Best of luck!