Thanks! HP's are definitely the hands-down favorite based on the comments so far.

Commiserations on the Xerox, I know how hard it is to give up something that works. I feel guilty thinking about replacing my HP Deskjet which has needed only new ink cartridges for the past ten years (and twelve novels!) It's been trouble free, and that kind of reliability isn't common.

But it's slowwwwwwwwwwwww, and <4ppm just isn't cutting it any more.