Hey Mike, welcome. I was in Ireland last July for my cousins wedding and found a great website. www.beoir.org
they are all about home and craft brew in Ireland. I wasnt in Dublin(my familys from Kerry) but found great brews and found a homebrew community there. HBT is a great resource but going to a club meeting or a brewday at someones house is a great opertunity to learn. All the best and yes it rained everyday I was there! Did you ever get a summer this year?