15 days in Ireland.

I'm doing okay for the first part of the trip, 2 nights Galway, 1 night Aran Islands, 1 night somewhere near Cliffs of Moher, to Dingle via the shannon ferry, 2 nights Dingle, 1 night Kenmare, 1 night Kinsale...and there I stall, would like to see Cashel, Kilkenny and some of the sights in Wicklow before returning the car to Dublin Airport and spending a few days in Dublin itself. Any suggestions, favourite places? Or good ways to tie the areas together? Thanks