Hi Dot: Nope, can't make it this yr. My next trip will be to New Zealand as I want to see my girlfriend at least one more time; her cancer has returned.
If this is your first trip to Ireland, it is always best to go with a tour, then next time you will know all the rules, etc. and can start off on your own. But, that is to each person's perogative.
Concentrate on Cork but start any research in Dublin at the Archives, etc. A visit to "Inside Ireland" offices in Phoenix Park in Dublin would help, too. I used to subscribe but didn't renew this last time. Brenda is the owner/publisher and her staff is very helpful. They usually have an excellent genealogist that works with their subscribers so they could put you in touch with him, too. And, they have great guidelines for what to do and where to go for your research.
Hope you have a good trip. Let me hear from you. In Dublin, ride up the mountain and visit the Fox Pub.