Kodak Professional TRI-X 400/400TX 35mm Black-and-White Film, 36-Exposure Roll

I bought a brick of this several years ago for a couple of black-and-white photography classes and was pretty pleased with it. Tri-X requires less development time than TMax, so there's less waiting around until you can get back to the fun stuff in the darkroom. It is a little grainy because of the film speed, but in this case the grain gave the finished photos a very pleasing quality that I wouldn't have had if I'd shot with some slower film.