Lighting depends a lot on your scene and what you are trying to achieve. For portrait or pinup work I would try a basic 3 light setup with spotlights. One is a main light, one a side fill and one a back light. Its the same setup a photographer would use. 

Skin textures are important, so find a nice one or use bills vss system.  There are a few free skin textures that are better than the Daz sample texture.