Just a few .....

http://www.megalithomania.com/show_county.php?county_id=8

Feel free to impose on me when you come over. Always happy to show people around. How long are you thinking of coming across for?

However, I would recommend Glendruid, Kiltiernan, Ballyedmonduff. I can almost garrentee that you'll have these to yourself. Well, perhaps a few cows at Kiltiernan :-)