ChrisM, the 35mm AF-S f/1.8 is a great low light lens. It's a very sharp go anywhere lens. You will enjoy using it.
Helene, use of a shopping cart to carry personal belongings on the street in the State of Georgia will land you in jail. Shopping carts by law belong to the stores in the shopping malls or other locations and used only for their products. Shopping carts are not sold to the general public so if you have one on the street and you are using it for personal belongings you can be arrested for possession of stolen property.
Right at the moment, and I'm sure it's only temporary, I'm happy as a clam with the equipment I have. A D90 with five lenses covering 11mm through 300MM, a bunch of filters, and a tripod. The wife dosen't complain about the equipment I buy, you should see her antique quilt collection.