I thought this was an interesting article published by the National Association of Nurse Practioners in Women's Health. It contains excerpts of a presentation from a National Instistitute of Health conference
http://www.nih.gov/. It specifically mentions that women with PCOS who are otherwise healthy are no longer considered to have contraindications for BCP use.
http://www.npwh.org/Oral-Contraception/index.htm