Researching for well known print shops can be tricky because you need to know what quality that they can do, what the prices are, and what is color output for solid colors like rich black.

When looking at Vista Print as being my chosen print company for my business cards I asked what their formula for rich black was.
Response was: 98,98,98,98

Their bleed that they wanted was around 1/8th of an inch. Taking these things into consideration I changed my black to their rich black. Made sure all the bleeds were to their specifications. I built this one-sided with a spot gloss on the logo and with a matt varnish to give it a clean look.