QTR-Quadtone RIP

The Piezography website makes a pretty good case for their inkset,
with the 1-pt type demo.  I've seen comments elsewhere that new
technology as rendered that product obsolete. While that seems a bit
extreme to me, that sort of thing does happen...

Otherwise, I was thinking of getting a printer and dedicating it to
the Piezo inkset (with QTR) and learn to do some decent BW. I do have
an Epson 3800, but after seeing the info on the Cone site, I can see
were a dedicated BW printer would be the bee's knees.   (!)

SO - if Piezography/QTR is still a viable combo - what would be a good
13" X 19" Epson printer to use for such a task?  Also - I'm on Mac OS
X 10.4.11 Tiger.

Tks!