To celebrate its arrival on the north side of Dublin and its new look elsewhere, O'Briens Fine Wines is slashing the prices of all its stock by 20 per cent from next Monday until Sunday, March 28th. A single week to save on bottles ranging from the grandest grands crus to simple everyday quaffers - with the gold-medalwinning Tatachilla Shiraz and Merlot somewhere in between. The branches offering this bonanza are the new one in the Maple Centre on the Navan Road; also Donnybrook, Sandymount, Upper Rathmines and Rathgar.