I would like to start make use of the yard this year, craving for an edible garden.

Here is my yard's layout:
http://i187.photobucket.com/albums/x41/yujai_blog/ya.jpg

I understand most vegetables need as much as sun as possible, however, most of my back yard is under shade(from our house) for most of the time. Our yard is on a slope, our neighbor at the north of our house is at a higher aviation than us. There is a waist tall brick wall and trees in between our yards.

The side yard(facing east and south) probably gets the most light, however, that is also next to the street, which i would much prefer growing food in a more private location.

The west part of the backyard (left hands side in the layout picture) is on a slight slope facing west. It seems to be a good place to put a raised bed, expect it only gets morning sun. Or would the narrow between the brick wall and concrete wall be a good option?

Where would be the best location for raised bed?

Thanks in advance!