I recently started a thread on SAD or S.A.D.D. and there were some great replies. Yes, do a search. On one post, there is a link to an article from the Mayo Clinic...very interesting!! I so feel for you....I'm going to get a light, too, as soon as I decide which one is best. I'm going to see if my doctor will write a prescription for it so my insurance will pay.
Good luck!!