Check out Crazy Ivans blog, on page 3 he has a step by step tutorial how he paints his minis. Maybe this will help you, I know it helped me a lot anyway :p (and I should probably re-read the whole thing again ^^)
 Not sure if he does wetblending or layering, but it looks good. Anyway, this might help you
 
 
http://www.dakkadakka.com/dakkaforum/posts/list/60/473262.page