Gardening in an apartment?

I live on the third floor of an apartment building. I don't have space in the front that is protected from the other tenents and my back porch is 90% shade (there is a gordeous tree that keeps it cool). I was wondering what types of plants do well in the shade and that can be kept in pots since I am on the third floor. Also, I will probably be moving at the end of the summer and want to take them with me, so something that travels well.