what most of the guys in the mainland forget is Northern Ireland is part of the UK, so therefore not as expensive as everyone thinks, they just think "ohh Ireland thats gonna be expensive" i used royal mail for all the smaller to medium size items and paisley freight for the larger items to ship to the mainland, so will be just as good going the other way. i fought with a trader few weeks ago because he tried to charge me an extra £12 for postage because it was going to "Ireland", took me bout half an hour to explain north is uk (cheap), and south is Ireland (expensive).