Yeah, Sláine is a Gaelic name meaning "health". I can only guess that it's closely related to the common Irish toast "Sláinte!", which also means "good health". ;)
That's one of my favourite pieces of music, too! :joy
My name is kind of loosely based on Aletheia (which means truth, or un-forgetting) and Mnemosyne (who was the Greek goddess of memory and remembrance). Around the time I joined the site, I had a big interest in remembering certain things...