Getting Here
The OpenStreetMaps SOTM 2008 Travel Wiki Page is collecting tips on how to get there.
Limerick is 25 km from Eire’s Shannon International Airport and it is a 30-minute journey to Limerick by connecting bus running every hour throughout the day [timetable].
Do you want or can you offer a lift from Shannon, Dublin or Cork airports? Ride share page.
This WikiTravel Limerick link also has more on bus, train and car hire plus other accommodation options and what to see.