Yes only did Newgrange / Knowth which were very interesting despite the 'guided tour' nature of the visit. Being taken into Newgrange and simulating the midwinter sunrise is definitely worth the admission price though I have to admit. Saw Dowth from a distance but wasn't sure how or if you could even get to the site - I got the impression they were 'hiding it under the carpet' as it were............
Discovered Tara, sort of by accident and was very impressed. It's a bit difficult to unravel the layers of Irish mythology that have been superimposed on the site but you are left with the impression of a hugely important sacred place predating all of it.
Thanks for the advice, will definitely get down South next time