The Gathering 43 Lower Gerald Griffen Street Limerick Telephone: + 353 61 315133
They sell: RPG books, Comics, Models, Card Games, Wargaming material, Battletech, Warhammer. However, as of 2009 the shop (apparently suffering as a result of the economic downturn) has shrunk in size, and thus has seen a direct reduction in merchandise being sold therein.
If you contact the shop they can put you in contact with gaming groups in the area.
They also run events in the shop and over the years have successfully run Conclave.