hey nadia,
I an an ex pat (british) living in
ireland, just happened to come across this site,.
Dublin is expensive since it adopted the Euro you will pay about 600 euro for a flat ($900) approx or $1500 a month for a good apartment.
electricity is about e30 a month and you don't pay council tax so that's a plus. i'd suggest a holiday first then see if you would like to move and i have to say irish are not as friendly as they would have you beleive,but there again i'm English so you'd be ok being canadian.
hope this helps you.[/b]