Ben, don't worry too much about the equipment. I've sold prints from shots that I took with a Nikon Coolpix E5900, a simple little point and shoot.
I bought a Nikon D80 after the D90 came out and fitted it with a Nikkor 16-85mm wide angle zoom.
I delete at least 1/2 my shots after uploading to my PC. After that, my collection consists of about 10 to 15% keepers from a shoot.
Most people walk by the type of subjects that I look for.