I'll be traveling to Ireland next week for the first time. What should I try? Bring home?

I'll be very busy and will likely have little time to sightsee, but I'm sure a pub or two will work into the plans. I'll be near Dublin.

I've tried Jameson's, Bushmills and Knappogue Castle but am unfamiliar with the more esoteric whiskeys. Your recommendations are appreciated (beers, ales and stouts, too).