I made a thread a while back, and I know this is quite old.
But I found out today that as an EU citizen, you are entitled to an Irish grant for university, but this is apparently only a fees grant unless you live in Ireland. I don't know what a fees grant is exactly. It can't be the university tuition fee surely, as I thought EU countries couldn't charge different prices to other EU citizens. So tuition should be free anyway. This fees grant is means tested to, so it says, but again, I don't know what this is for.
I think this grant may be to go towards the €1500 registration fee, but again, I'm not sure.
To get a maintenance grant, you need to have lived in Ireland since 1 October this year, and this is up to around €4000 per year. From what I've seen, the Government in Ireland doesn't seem to offer extra loans like you can get in England. I'm sure someone who studies in Ireland will say if this is true or not.