Many of the guys at my
FLGS used
http://bluetablepainting.com/painting/. They offer different "levels" of painting depending on your price range and how detailed you want each model to work. Though the guys never say how much, I wouldn't think they would have went through the process if it was not a good deal.
As far as the quality goes, very good. I would recommend, I just don't have the cash to have my minis commission painted.