Digital BW, The Print

I'm just wondering ... if I were to go out and buy the necessary hardware
and software to make nice, black-and-white ink-jet prints on my desktop,
right now, what would be my best choice?  I'd want to be able to go up to A3
or Super A3.  The printer would be connected to my Windows XP machine.  The
printer would not be used for any other purpose.

I assume some sort of Epson printer would be the leading choice.  If so,
which one?  Or which other printer?  What about inks?  What would be the
overall investment, for printer, inks, any required software, and paper?  I
already have Photoshop.

Would I be able to get exhibition-quality B&W prints from this set-up?  I'd
need that level of quality in order to justify investing in a dedicated
printer for this purpose.

I currently have an Epson 2000P, and it prints so-so in black and white
(much nicer in color), but it's clear that I'd need some sort of dedicated
printer to get really nice B&W ink-jet prints, so that I could use whatever
magic inks are required to produce optimal results.

Suggestions or a pointer to a site that answers these questions welcome.