The Celtos miniature range was always a favorite of mine. I think that Brigade Miniatures purchased that line. The Sidhe were the Elves. You have seen a few dioramas that I have posted in the past using the Sidhe.
At some point, I still want to GM a game using the Slaine RPG system. The Celtos minis are perfect for that!!
I have some more recently discovered Celtos minis coming along soon... stay tuned!