Dublin has morphed into just another big, European city and not worth more than a couple of days visit. One day actually unless you have an interest in visiting Trinity in some depth. Once out of Dublin finding tobacco is sometimes hit or miss. It'll often be hidden from view in whatever store carries it and you must ask. Dublin is best and the two stores mentioned above ore across the street from Trinity College and, all of the new and old pipe smokers.
Tralee is great to base out of and a trip to Dingle is grand. Some good pubs with "trad" bands. Look to what the locals are drinking and try different stuff. Killarney National Parkis but a day trip from Tralee. So a romantic ride in a trap around the rugged grounds and formal gardens is almost a requirement for anniversaries.
"The Quiet Man" sites mean a trip to "The West", Cong has some residue left from the shooting, and there are remnants of other sites scattered around Connemara. Which means a trip to Galway and Mayo counties. Galway City might be worth a side trip as it is a vibrant city and college town. Lots of traditional music in the pubs also. OMailles in Galway made most of the costumes for "the Quiet Man" and is the place for Irish knits. Aran sweaters made by hand are spectacular. Ger and Anne will be happy to point out the better (local) pubs and where to find great pub food. I'd suggest a visit to their web site. That might force your hand and get you to drive up there.
I spend my time in Ireland in the "West" but, often drop down to the Dingle Peninsula. If you are going in the summer, reservations are a requirement and then you are chained to a tight schedule. "Shoulder" season makes finding spur of the moment accommodations easier. Be aware of "bank holidays" as all the Dubs in the world head out of the city and hotel rooms can get iffy in the counties then also.
Enjoy! You will be going back!
An aside: Smoking is indeed forbidden in the pubs. If you are lucky, some pubs still reek of many years of old menm, smoke and ale. But, civilized as the Irish are, many pubs have outside smoking areas somewhat protected from the elements. So, grabbing your pint and girl, donning your wellies and stepping into the rain to smoke led to a new activity, "smerting." Smerting is smoking and flirting, just the thing on warm, rainy night for a couple of newly weds as yourselves.
If indeed you visit Roundstone, my favorite wee seaside hamlet in all of Ireland, go during the week and call ahead for a reservation at the Roundstone Hotel. Tell them Warren recommended them and prepare to enjoy the best "Shepard's Pie" in the West. The Vaughans are grand people and will send you to all the right places in the neighborhood including two really nice local beaches.
You'll hear the Irish language being spoken in Connemara, a lot. I do envy you and your bride. Seriously, you will be saving for another trip as soon as you leave particularly if your roots spring from the Island.