I htink I may have a gist of what youre asking, so I hope this helps.... The skin textures realistic look can be achieved by using a merchants pythin script : Unimesh Realism Kit by: Face Off. This will only work if youre using P6 (I think...dunno if it works with P5) The lights (again I think...) area mixture of Image Based Lighting (IBL) or Ambient Occlusion (AO) also only for P6, and ordinary spotlights, and Infinite lights, which cast shadows.... Have a look in free stuff here, and at RDNA, for some light sets, a lot of the newer sets have a blend of these lighting techniques. Otherwise, I think there are a few tutorials here that teach you to create your own....
Best of luck :)

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always lands butter-side down, and cats always land on their feet, what
happens if you strap toast on the back of a cat and drop it?"

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