I've got no idea if there is a dealership in N.I. I would have thought N.I. would be considered part of the UK from a dealership point of view and as such would be handled by The Flash Centre. Paddy Barker is the Irish importer and might be worth asking about this.
Alternatively, Ross (Brandyman) has these in the studio he and a few friends have set up, so he might be your best option. My own opinion is that I think the D-Lites are certainly up to the task, but if you intend to travel a lot with them you might be better of going for something sturdier like the Style series (or if you want to work away from a mains supply, get your hands on the Ranger kit - the downside to this is the cost).
- Thorsten.
