I'm looking for a good bike to use to get around college this fall and the surrounding city area. It needs to be as inexpensive as possible, survive for (at least) four years, be innocuous enough to not get stolen, and have good performance on hills, as ALL of the science buildings are on a rather large hill, and I'm probably going to major in physics.
Any suggestions would be appreciated. Also, can anyone advise a good way to keep my bike from getting stolen? Thanks very much for your time!