Here's a nice little video about mixing some flesh tones.
I think my favorite part is that while you know this is something this artist has done many times, you can tell it's a process. He has to add little bits of this and that in order to make it work.
This is all part of the process, right?!
Note: you can ignore the whole color wheel think with the hole in the middle at the beginning. That will save you some time.