My firm has asked that I begin documenting some our past projects. Both interior and exterior shots. Being an amateur I am not sure what lens/settings I should use to get the best shots. I have a Nikon D90 with a 15-55mm and a 55-200mm VR lens. I also have Nikon's SB400 speedlight. I would be more than grateful for any advice on which lens/settings to use or any good book suggestions on photographing architecture. Thanks!