I had one done here. They have a row of cubicles all with the chair, microscope, computerized x ray w/ flatscreen and fibre optic camera.
Took all of 45 min, no pain. MUCH easier than getting a cavity filled. I know it's out of your way, but maybe you could get it done on a Friday and make it a 'weekend getaway". Timothy Jue was my doc, great guy.
Ventura Endodontics