I would recommend the IPF series printers.
While spending a year in London, doing retouch for
this guy I also did his portfolio prints. They were all printed on the IPF5100, with custom roll paper from Germany. The results were extremely nice.
The IPF comes with a photoshop plugin, where you can fine tune the colors, should they be off a little. I can honestly say that after a screen calibration, a PS proof check and a fine tune in color, you could hold up the prints next to the screen and they would be as identical as possible with two different types of media.
It doesn't come cheap, but the positive side is that once I got the color right, I hardly threw away any prints. ( I should probably mention also that the screen I used was an Eizo with AG... glossy screens lie about color and contrast big time)