--Get a full spectrum light, and use it first thing in the morning for as long as you can.
--Get outside and walk as much as you can.
--Get your vitamin D levels checked as low levels are associated with depression and pain. Your vitamin D level needs to be between 60 and 80 for the most benefits--protection from cancer, colds, hormone effects.
--Take magnesium as low levels are also asssociated with depression, migraines, constipation and a host of other maladies.
--Low melatonin levels are associated with SAD so if you have that, take melatonin.

Here's a link to a wonderful book on treating depression naturally:
http://www.amazon.com/What-Your-Doct...r+*+depression