You'll get a good selection of bottles in the bierhaus alright. I often pop in on my way home on a Friday, if I am not going for pints. At €2 less than the bar price, it does work out a bit pricey, when compared to the offie, but they do have a lot of items not available in the offie.
I think some of the Dungarvan ales are avilable at a place up in mayfield.