alright mate, i'm from ireland aswell and have got seeds from Herbies lots of times and never any problems. i dont think you should be thinking of breading on your first grow, you might end up with a grow room full of seeds and not much bud to smoke.

vanella kush and northan lights would be good plants to start of with,
the V.Kush has a high THC% and can grow very big. i'd say you need about 100w of light per plant so 10 plants = 1000w light or at least two 400w.

rhino seeds are very good to