Digital BW, The Print

I have been away from B/W printing for a while, two years I think! 
The reason I gave up was the Cone inks that I used all turned green,
leaving me with a lot of useless prints which I still have a few of
and a bad taste in my mouth. 
 I would like to "Bite the Bullet" and restart with my 2200 and either
Imageprint or QTR. The question is what ink to use? I would like to
stay with the Epson inks for all but the black.  
What would you recommend to use in it's place?  I am looking for a bit
more Dmax than the Epson mk black.  I am no stranger to refilling
cartridges.

Thanks,

Barry