Aye, gotta agree with gentleman above, say goodbye to the dweller and the trolls, they aren't worth and the points are better spent as an addition to your horde. Also Hereticdave is right about the drum, don't leave home without it. You may want to consider using the named heroes, Groblag while not a great fighter has 3 might points and also with his crown buffs fury to a 5+ making your horde even more resilient. Shamans are a must, in 500pts, you need one, I personally take two (drum defense and offense line). One last thing to consider for goblins is Durburz, 3 might points, fairly survivable with 2 fate and he has a stand fast of 6". Now this may sound harsh but I think anyone who doesn't use him as a goblin player is a bit of a fool. In combination with your drum and when you have broken, with a little luck you can keep most of your offensive line on the board cos if goblins break, they split faster than a fat mans pants....