Normal Maps

Spent the last week really trying to sort out the normal maps from my model, been getting lots of artifacts etc which isn't what I want because I really want players to be able to zoom in quite close to the character.
(red circles errors in the normal map, don't want to get to technical but clearly something is wrong with the normal map cage).

Now I could make the poly-count 16000 polygons which might be worth doing, but 10k tris per model is the usual so if I can make this work I will. at (8474 tris at the moment which is nice, could maybe use some more around the head)