I have used the Epson 7600 and 9800 and they are great printers, but like Doug said they do go through ink. Also, I don't know about the newer Epsons but the ones I had required you to do an ink swap between photo black and matte black inks which wasted a lot of ink - read as $$$.
I now have the Canon iPF6100 and it is fantastic. The iPF5100 would fit your size requirements perfectly. And the Canon printers have both blacks on board at the same time and the proper ink is selected based on the paper type selected.
The Epson and Canon printers are both incredible printers but I am now leaning to the canon.