Hey,
Sorry for coming in on this late. I am in a similar frame of mind at the moment as well, ppl in Florida and then to PTC in Waterford. Visited them and came away very positive.
Anyway regarding PPL groundschool, there is an organisation based at Cork airport called Atlantic and they running a course for €300, one or two nights a week. It's starting around the 19th of March but i spoke to someone there and he said they run it every 3 months. Also based at Cork airport are Southaer but their course runs through the winter and is coming to a close.