My Revised Dublin Itinerary

Quite doable I think. It's really a pretty relaxed itinerary, especially if you're walkers.
As I think someone else advised, I personally wouldn't waste time on the Guinness Storehouse...we thought it a pretty underwhelming experience. Maybe better to walk up O'Connell Street and visit the GPO, given its role in the 1916 rising. Believe there are a few good pubs nearby for lunch and/or a pint as well.

I agree with Robert -- do-able, but I would skip Guinness too, even though I am a big Guinness fan. It's packed, it's not actually a brewery anymore, and I'll bet you can learn as much about how it's made by watching a youtube video at home. There is so much more to see in Dublin that I would recommend you spend your time elsewhere.

at St-Patrick's, you will have the option of walking around on your own or taking a tour with one of their volunteers.. take the tour! Brendan is the name of the our guide we had and he was spectacular.. we got so much out of it!

Doable yet as a die hard fan of the dark nectar of the gods, I too say forget the Guinness tour. Wasted time. Enjoy Dublin for Dublin.

Ok I have scratched the Guinness Storehouse. Will use the time to actually DRINK Guinness in the pubs. LOL

My comment is specifically about the Guinness Storehouse: if you have never been there, you should go. Yes it's popular and can get extremely crowded. I am typically not a museum or popular tourist attraction person, but I found the tour (it's self-guided) fascinating and a highlight of my last visit to Dublin. The panoramic vista of the city from the bar on the top floor was great, and lunch with Guinness beef stew was great, in addition to all of the memorabilia, history and the merchandise store. The key is this: go early, ideally when they first open or soon thereafter, and you'll both avoid the crush of people, and it'll be a bit less expensive too earlier in the day. I bought one of the Dublin day passes from the tourism office in the city, which included entry through the express line and that was a timesaver too. Don't miss it!

One of my friends on Facebook has also recommended we go there. So I guess I'll see what time permits & if we go, we go and if not, I'm ok with that too. Thanks!

Although I agree with previous posters that Guinness is not a "not to be missed" attraction, we enjoyed it. We took the hop on/hop off bus and stopped there on the day we toured Kilmainham Gaol (which IS a "not to be missed" site). It doesn't take long to walk through the exhibits, the view from the top (where you get your "free" pint) is quite wonderful, and the cafe there is a great spot for a quick lunch--the Guinness stew was outstanding! It doesn't take all day to visit Guinness and do the jail tour either--we were able to explore St. Stephen's Green and tour the National Museum of Archaeology as well on the same day