Just don't try to bring the sausages, rashers, pudding etc. They have dogs at the airport who sniff out food (as well as the bad stuff!). We go there every 2 years - all you need is your current passport (must be in date for the next 6 months), and the Visa which is available easily online. BTW, for any relatives in Australia looking for the Irish Lyons Tea - it's not made in Ireland any more!!!