Not in Ireland - most ROI shoppers head to the UK if they get a chance.  Even with the 3% closing of the VAT gap, there's still monsterous bargains buying in sterling and being charged in Euros.  Most cross-border companies are still pricing as if it were €1.45 to the pound.  I.e. clothes tags in Belfast showing £21 / €30.  Buy it on Visa, bring it home, and then wait for the €22/23 to come through on your card.  Do that with a stack of stuff, and the savings start to mount up.  And that's presuming you aren't buying booze, where the difference is even more crazy due to insane ROI alchohol duty.

So to answer your question - no - nothing to be had purchasing Euro products and paying in Sterling - prices in the Republic are too extreme.

Shopping in US, different story (from € at least).  Pair of Adidas trainers which would run me easily €79 in Dublin.. purchased in the US in Adidas outlet, through on my Visa at a tasty €39.  Not sure how the £/$ rate is doing, especially as they're both in the toilet at the moment...

cheers,

dave