Digital BW, The Print

Thanks for peoples replies. The answer seems to be pointing me to an 
epson inkjet and model 1280 or I assume 1290 (?) seems to be the 
preferred model.
I assume that if going down the B&W route it needs to be permantly 
set up for B&W and not swapped out for colour - i.e. keep the two on 
separate printers?

Also the pigment based inks mentioned and which paper? Also are 
these available in england or will they need to be ordered from the 
US?

thanks again for everyone's input and putting up with so many 
questions!!

Grant