Dexter -
Have you tried SAM-e (S-adenosylmethionine) or 5-HTP? They are OTC supplements that a lot of people use in lieu of prescription antidepressants.

I used SAMe many, many years ago and it did provide relief. Available at major drug store chains, etc. Suggest checking WebMD's drug database to read user reviews. WebMD Drugs & Medications - Medical information on prescription drugs, vitamins and over-the-counter medicines Can be costly for a therapeutic dosage for depression (in comparison to insurance co-pay), but it's readily available and could serve as a stop-gap measure until you can get an appointment with a doctor.

I don't have personal experience with 5-HTP, but I just know of it. I don't think it's as widely available (common) as SAM-e, but the GNCs of the world would have it.