St Mary's Cathedral, Limerick - (can't post URLs)
Interesting historic builing in Limerick and about 30 mins from Bunratty Castle and Folk museum.
The major roads in Ireland have improved a lot over the last 20 years ago but there are still some that are not for the faint-hearted. Just don't be in a hurry!
For accommodation don't be afraid to search out local B&Bs, usually good value and more authentic feel of Irish hospitality.
I have family in Mayo, Clare and Kerry so ask here or PM if you want any more.
Rower - Somehow haven't been to the City yet - one the list!